Presumably a lot of admittance decisions have already been made. These are about AP exams--basically placing out of college courses--so not a huge deal overall (especially at more selective schools).
Honestly, the bigger issue for a lot of students at the moment is the uncertainty over the degree to which schools will open up for physical classes in the fall. What makes sense under those circumstances? And, of course, a lot of the usual gap year options aren't going to be available either.