I don't really know anyone who (openly) believed that online learning was going to be successful.
Online learning is fine for adults who have developed sufficient mental discipline and focus, especially college style where you're in classes only a few hours a day.
Expecting 7 year old kids and teenagers to sit in front of a computer screen and suffer through what effectively amounts to 7 hours of meetings is asinine- they can barely do that in person, where the number of distractions is far fewer.
OTOH, I will never go back to an office, full stop. The commute isn't worth it, and being in person more than a handful of times a year (tops) isn't worth it. I'm a fairly introverted person by nature, though, and my dogs and wife are home during the day, so I don't really get any sense of isolation.