If they're all falling behind, then no one is falling behind.
Agree with the take this will hit the at-risk hardest. Those without social structure, losing the thing they get most out of going to school, social structure.
Few systems had time to teach their kids the tech and organizational skills they would need at home, more-so an issue for the at-risk.
But the feeling and most likely reality, this segment of population contains the same kids that would be hardest to teach or get to cooperate with the new realities of in-building learning; distancing, masking. And they are the ones with the least resources to get help should the problem have reached home and this I believe is the biggest concern of both those in education and of those families that would share the building, with the troubled or stubborn parts of the population. Remote is still better than taking it home and killing grandma or getting parents sick who cannot afford to lose time at work.
Some games are no-win, try to mitigate the losses.