It's an unprecedented catastrophe, and even if we will weather it,
someone (well, many someones) will suffer (we'll all suffer, but some more than others).
Besides solving the crisis (to which most of us cannot meaningfully contribute) the main priority is preserving the rest of the society so that we can go on with as little harm as possible when the immediate crisis (virus) is over.
In this specific situation, it's obviously better to prioritize borrowers/renters over landlords, because the former are actually productive. Restaurant fails => no food; landlord goes bankrupt => house remains, it's just gonna be owned by someone else.
What complicates matters, obviously, is second-order effects; first of all, if some / many landlords are leveraged, them defaulting might impact banks, which is definitely something we don't want; if I were the government, however, I'd be saving banks directly in this situation, not landlords. The other consequence is a crash of the housing market, which IMO isn't that much of a big deal, but it's been politically untenable for a while because too much of ordinary people's wealth is tied in housing. It might be a good opportunity for a reset, though.