You could ask the same about why some lifts only get level 2, or why people get costume deductions... It's all stuff that people should know in theory. But I guess that what happens is that people get taken with a particular idea, because maybe they love that piece of music, or they think it will make them stand out. Maybe it fits 75% of the requirements, so you try to twist the other 25% by altering the tempo, or adding a drum beat or whatever, and sometimes your gamble pays off and the judges accept it, and sometimes you get told to make a change or ditch the whole thing.
C/B & W/P both will have been to their national performance camps with their old programs, so it was signed off at that level, and neither of them got music deductions at their events, so technically they were OK with their choices. It sounds more like the feedback for both of them was that the judges didn't love the programs & thought there were question marks, for C/B in particular. Just speculating, but I think W/P is more of a kneejerk panic reaction to their disappointing scores at Finlandia. The rhythms were OK, they got good levels apart from on the twizzles but the PCS & overall score wasn't great, and many people were commenting online that the program was a bit dull & safe. Maybe they just didn't have faith that it would keep them competitive this year.
C/B & W/P both will have been to their national performance camps with their old programs, so it was signed off at that level, and neither of them got music deductions at their events, so technically they were OK with their choices. It sounds more like the feedback for both of them was that the judges didn't love the programs & thought there were question marks, for C/B in particular. Just speculating, but I think W/P is more of a kneejerk panic reaction to their disappointing scores at Finlandia. The rhythms were OK, they got good levels apart from on the twizzles but the PCS & overall score wasn't great, and many people were commenting online that the program was a bit dull & safe. Maybe they just didn't have faith that it would keep them competitive this year.

Too bad most judges and technical panels are no musicians also and can't or afraid to call for a deduction where it's clearly needed. Same goes for Hubbel/Donohue. :disapp: