Wasn't the push to get people back in offices to boost other industries, and thus tax revenue, as much, if not more so, than protecting commercial property/rental values?
If someone works at home they're not really likely to do a lot else with their day are they? They'll eat something that's at home, maybe go for a bit of exercise if time allows. If you send them back to the office you've got far more chance of them buying lunch from somewhere, they'll pay for fuel or public transport.
You take away that regular congregation of people then a lot of other things fall by the wayside too.