Strike the word virtual and you've just described school. Sure, there are schools that are trying different classroom methods but broadly kindergarten is lectures, worksheets, nap, lunch, and recess. I think your point stands that there's not much innovation in the world of k-12 but I don't think Zoom is what actually matters here.

This stuff is hard, and so many classroom models fail that I'm not surprised that "replicate the one that works" is gaining traction.