Stats should not be observed in isolation but in relativity. Who else participated at the event and how they were relatively marked, where is the competition, makeup the judging panel then, how they actually have skated to how they are marked, as well as ANY historical anomalies.
Speaking of Sochi, put it this way. In an effort ISU tries to justify such incredulous judging anomalies and ensures Russian ladies dominance to the next Olympics, consider the changed scoring trends today relative to pre-Sochi.
PCS does not need to be built organically or marked within a narrow corridor, unlike previous eras through hard work and steady earning stripes (medals over years). Russian youngsters and Satoko all benefitted from this.
It has become accepted NORM that momentum can be gained much easier through friendly competitions hence benefit power federations with GP series + Euros (+ EuroBs).
It is now accepted as NORM that scoring can fluctuate greatly from start of the season to the nationals, once power federations work out which youngster manage to survive puberty/injuries/bad publicities/:disagree:TSL etc..
Skating order matters more than ever before. The fact PCS inflation can fluctuate from begin of the season to the end for a promising youngster can be a huge disadvantage to skaters who earned PCS the 'old fashioned way' with the old benchmarks, as there is literally no room to compete, it deters comebacks.
PCS is more puzzling than ever, concerning choreography, performance and interpretation marks, even on occasion Skating Skills. To get the best scores ever, you don't need a particularly good program, great interpretation nor hardest jumps, nor quality of jumps. The distance between the PCS has also become meaningless when it is like of 0.2 or 0.3 difference and hence completely out of wack. but ISU doesn't seem to care, either because of complacency or just because it happen to suit ISU heads (including Lakernik, VP of Russian federation) that manage the sport. Poor artistic men, your efforts are wasted unfortunately as you happen to be in an era they desperately want to keep a Russia young lady for 2018. On the other hand, the power federation youngsters like Nathen Chen may benefit a great deal from this trend.
Consider this also. Despite BOTH WC 2014 and 2015 events took place in Asia, (Mao is to skate in Japan), here were the judging panels for the ladies events...
http://www.isuresults.com/results/wc2014/SEG003OF.HTM
http://www.isuresults.com/results/wc2014/SEG004OF.HTM
http://www.isuresults.com/results/wc2015/SEG004OF.HTM
http://www.isuresults.com/results/wc2015/SEG003OF.HTM
Nationality of the judges
http://static.isu.org/media/105974/1756-list-officials-fs-id-sys-2012-2013.pdf
Not a single judge from Asia, and only the odd 1 from N.America. It was an unfortunate anomaly first time, it became a pattern the 2nd time.
Kostner's placement 2014 despite a terrible FS benefitted from the slanted panel.
Mao has always been one of the biggest threat to the podium so she was contained. Coincidence Shin Amano seems always get assigned to her competitions and was also the tech specialist at WC2015 after she came off as the reigning 2014 WC then?
What does this mean for the men? The judging panel makeup should be interesting. I expect Boyang's PCS will be suppressed to make room for their own skaters, while we will see a hike in Nathen as US#1 with miraculous feat, but the biggest hike will be reserved for Javier if he deliver, maybe even 10s (They run out of room) Poor Chan, he should have the highest PCS of all, but alas.. The 0.1/0.2 difference is not enough to compete these days. Wholly underated consider the amount of effort to realised a truly detailed nuanced thoughtful gimmick free quality FS program.