Colleges know that test dates were cancelled and truly don’t want to penalize students who couldn’t take the tests.
In any case, while test scores are important, at highly selective colleges they’re far from the be-all end-all: they’re just one data point and not the most important at that - basically, a benchmark, a check for an unknown program (ie., is that A in AP English a “real” A if the student scored 480 and 510 in EBRW? How does that compare to the rest of the school?) or a way to compare applicants from the same school. A high score can be a positive but won’t tip the balance to an admission. Often, you have to meet a benchmark (ie., “most students from Famous HS who were successful had a 1480+”, “we took a chance on a 1280 from Unknown Rural HS who ranked #1 in her class and she could do the work here”…) but really the most important factor is school record, then distinguishing factors and institutional needs.
Does your daughter have 2 affordable schools that she likes where she’s already been admitted and a few match schools she’s applied to EA?
It’s normal to feel despondent after a rejection but she must remember it says nothing about her as a person or a student: the AdComs had to craft their class with various targets and she was just unlucky. Perhaps she plays the viola and they need an oboe player this year.
She sounds like a very strong student, so she WILL have a college to go to in the Fall. If she doesn’t have 2 affordable safeties yet, have her look at colleges that offer merit for her scores: Miami Ohio, for instance (or run the NPC on some Colleges that Change Lives). Since so few students were able to take the tests, most universities that exchange test scores for merit scholarships are being more lenient on the dates, often Dec 1 has been turned to Feb 1. Having 2 safeties should make the process less tense for her.