A flaw in this article like every other I've ever read both acknowledges that we don't have good objective data and then also goes to say "remote work works, don't fight it", etc. COVID wasn't this big, controlled experiment that tested remote work - it was the opposite, there was no "control" as everyone went remote at the same.
There isn't good data in either direction, and I doubt there will be, ever - but that's a poor reason to not be opinionated about something. There's limited and conflicting data on whether static vs. dynamic programming languages are more productive, but plenty of people on this site have very strong opinions on that. Remote work is no different.
It is time to stop complaining one way or the other and let people and markets vote with their feet and dollars.