If companies had to pay even part of the externalities of commuting they'd have stopped this antiquated modus operandi long ago. As it stands I feel like we're going to have to wait until all Silent Generation/Boomers retire before we can see real progressive change in this area. Honestly it really speaks to poor management in general. If your only measure for project progress is "butts in seats," then you have no id…
What most companies need most of is competent execution of ideas they already have, and that's perfectly possible in a fully-remote setting in a large proportion of orgs.