Really?
I can't imagine either of my kids doing things like that - perhaps a brief outburst, sure, but it would have been immediately followed by an appropriate response from a parent.
> My sense is that that, if you aren't currently trying to usher a preschooler through this experience, you don't actually know how your kid would have handled this situation as a preschooler.
While we're not under exactly those circumstances, our youngest is six and we've always homeschooled. I also have a number of public school teachers in my family, and from my perspective the problem is 100% the approach. Distance learning can absolutely be effective, but trying to force the rhythm of a government school onto it is a flawed concept.
On the other hand... if they restructured it so it would be effective from an educational standpoint, they'd have a much more difficult time getting those kids back into classrooms when the time comes. I strongly suspect that the programs that are in place are designed more to ease the transition back into the classroom than to educate.