I think management people are likely running on fumes … it's like the inverse of what introverts feel when they have to be in-office 5 days a week I suspect.
I'd add that the second take is also kind of outmoded, in that it assumes that mentorship, friendship, business opportunities must flow through your company. I've actually found more of this during the pandemic, and apart from my company …
True, serendipity (e.g. water cooler conversation) is harder in remote environments, but not unsolvable …