Not seeing the lips and having the sound be muffled is a lot of sound and info to be lost over a day. 2 weeks woulda been fine. 2 years of struggling to understand the teacher is an irreparable setback. The smart kids were fine and tuned out anyway, but the struggling ones fell behind.
Based take. Absolutely plausible.
I think it's a combo.
Not seeing the lips and having the sound be muffled is a lot of sound and info to be lost over a day. 2 weeks woulda been fine. 2 years of struggling to understand the teacher is an irreparable setback. The smart kids were fine and tuned out anyway, but the struggling ones fell behind.