It's also possible that Covid-19 provides a reasonable cover for a large case of "big bath accounting". Individual building owners might not want to (or be able to) reduce rents/returns. But if happens across the ecosystem, then everyone resets expectations enough that businesses can return.
The empty storefronts are bad, for sure. But to the landlord, reducing rent in order to generate additional income may revalue the property and put it underwater, which triggers clauses in the deals with investors and banks. And as far as I can tell, the whole thing is driven by how balance sheets can be presented to investors and banks, as much as it is driven by how properties can be rented to businesses.
My personal take is that this system killed SoHo. I also don’t understand anything about real estate ¯\_(ツ)_/¯