Drywall is terrible vs. modern plaster.

Modern plaster has backing boards that are similar to drywall, so you get most of the construction advantages (except for the labor intensive step of plastering), and can hand pictures / toggle bolts in the same way. Unlike plaster, drywall gets moldy + needs to be replaced after water damage. I think this is why films with old buildings set in Europe often show peeling paint / water damaged plaster, but people are still living in them, and it seems fine. In the US, buildings with that level of wear would be so moldy they'd need to be gutted to studs, at minimum.

The article touches on mold resistant drywall, but I'll believe it when I see it. Also, apparently, it is much easier to create long-lasting patches for plaster than drywall.

It's more important to control moisture than buy moisture resistant materials.

Drywall is great, its cheap and easy to repair.

I would not want to live in any water damaged house without remediation due to the risk of mold.