I probably shouldn't have said most schools (since a lot have CTE deadlines in like July or something), but I definitely see some schools with earlier CTE deadlines being affected. The entire WL process is like a game of hot potato. Someone gets off, has several days to think about the offer and then accepts or rejects it, passing the potato to someone else.
If we go into this process already delayed because people are getting PTE extensions, it'll delay that initial potato passing for at least a few days to weeks. If it took this long to give people accepted right-off-the-bat financial aid, then I worry the same could happen for people taken off the WL. And if 1 admit spot is cycled between multiple people getting off the WL and rejecting the offer, the delay just gets worse.