Not sure there's many parallels to be drawn between this eventual post-pandemic society and the country following the pandemic of 1918. I'd argue that people have worked communally not because it's been a proven winner over the course of history, but because up until recent advances in tech, it's been the only option.
I agree it's premature to think this is the end of the corporate office, but it's seems equally rash to think things will be business as usual.
It doesn't sound like the pandemic will impact SHW's plans, which is exciting. But it may affect others. Some companies will see the office as an unessary expense and view in-person attendance as a recruiting disadvantage. Some just the opposite. I think it's too early to make the call either way.