So if a skater popped all 7 jumping passes in one program, and then the did the same program again with everything else exactly the same but nailed all 7 jumping passes, then the PCS should be exactly the same between both programs? Because PCS ≠ TES?
ISU documents say a serious error affects the integrity of a program, which a pop clearly would count as adversely affecting.
Once again, integrity of the
composition, not program. Do you think that the ISU does not choose the wording in the rules very carefully?
Composition is specifically defined by the ISU, it is not some sort of undefined entity. You cannot simply substitute it by performance (another part of PCS) or program, as they
do not mean the same thing within the strict confines of the ISU. You
can say that in your opinion he should receive lower PCS because his interpretation/performance/... was not as good as usual - that's fine, that is your opinion. What you
cannot say is that his PCS should have been capped, because while you categorically consider pops as serious errors, the
only thing the ISU will
always consider a serious error is a
fall. In
every other case, it is
up to the judges to decide if the technical error impacted the composition - To me, it didn't (and I say that as a person that is actually not that interested in Yuzuru Hanyu as a skater, but I'm interested in rules and to me, the case is not as clear cut as some of you are making it seem) and 3 judges agree. (The remaining 6 scored him below the maximum scores either way, if it was because they felt his error impacted his composition or because they didn't think he was as good as normally or for whichever other reason is not for us to know) - Just as a little reminder, the maximum PCS score a skater usually scoring 10s with a fall would be 48.25 (higher than the score Yuzuru received). We haven't seen this program internationally, so we cannot compare this score to what he would receive for it clean, but in the past, clean SPs from Yuzuru have scored between 9.50 and 10.00, the average landing closer to the 9.75 mark than to the 9.50 mark. With this in mind, the maximum with a major error would be 47.00, 0.08 below the score he received (explained by three judges not deeming his mistake as disruptive to the composition).
People need to stop saying a "pop" isn't a serious error. It is. People need to stop diminishing their severity the way they say "a fall wasn't disruptive". It's a big, glaring, obvious error, especially on the first jumping pass/first impression/setting the tone of the program.
Falls, in contrast to pops, are explicitly mentioned. There is no other way to interpret the rule regarding falls and PCS cap - a fall should automatically limit the PCS maximum (I'm using "should" because some judges break even the unmistakeably clear part of this rule). I've never made any argument otherwise.
(unless you're in the camp that PCS is mutually exclusive from TES -- so 2 stumbles in a step sequence shouldn't affect PE/SS/TR/IN because they were part of a technical element)
A stumble in the step sequence is not at all comparable to a problem in a jump. Problems on jumps are rarely indicative of skating skills at the top level (or else for example Misha's skating skills must be much worse than I perceive them to be, after all, his jumps aren't very consistent), problems in step sequences often involve loss of edge control, loss of balance in difficult turns, ... that do show a struggle with skating skills ("Defined by overall cleanness and sureness, edge control and flow over the ice surface demonstrated by a command of the skating vocabulary (edges, turns, steps, etc.), the clarity of technique and the use of effortless power to accelerate and vary speed." - If you stumble during a step sequence, how high can the cleanness and sureness of your skating skills be?).
Also, as per your own definition of serious errors, wasn't for example Keegan Messing even more overscored in PCS than Yuzuru Hanyu? (Not a dig against Keegan, he did the best he could and definitely didn't score himself) As you brought up the stumbles, he did have 2 visible stumbles in the StSq (by the way, I feel quite sorry for Keegan, seems like the World is out to get him this year, from losing his luggage multiple times, his dog dying, him catching Covid and almost missing the Olympics to making small mistakes in spins and step sequences, probably due to jet lag or lack of practice time - but he seems to be very happy to be here despite that, lovely to see a skater enjoy themselves like Keegan does) which should be serious errors by your definition - and he still received the highest PCS he has received internationally since Skate America in 2019. (Average SP PCS per category when clean: ca. 8.75 (here he received a slightly higher average of 8.788), with one serious error his maximum should be around 42, with 2+ around 39).
And still, I don't see you going around criticising his scores. And I understand that it's impossible to look through every single skater's scores (and I certainly wouldn't want to), but if you want to apply the rules so strictly and broadly and even bring up stumbles in Step Sequences yourself, then it seems absurd to pick out one skater, who "only" popped one jump and scored pretty close to what he should have received at the maximum with a serious error, while overlooking PCS scores that would be much harder to explain by how you understand the rules.