The current procedures in place were for a Delta pandemic. If schools are to remain open now, the rules need to reflect Omicron. Either you believe Omicron is contagious enough that you have to go back to 100% remote learning, or it is generally harmless enough (especially if you’re vaccinated) that you don’t have such strict standards in place (I am for the latter but that’s just my opinion.) But the situation descr…
Covid isn't some seasonal ensemble. It's still very possible to catch the Delta variant.
If it was say a pretty stable 50/50 or even 75/25 ratio of Omicron to Delta, that might favor shutting down in-person schools. But this current explosion in cases and resulting chaos is almost all Omicron.