Yeah I agree it’s been an extreme reaction. Perfect is the enemy of good. Maybe most proton users will be willing to seek out even lesser known alternatives and even self host. But if you’re going to talk to a casual user about getting off of Gmail and then you say “Oh but not Proton” then they’re just going to stick with Gmail.
I often think about this too, though a quick search about house spiders did suggest to me they have a decent chance of survival through winter. I don’t think human structures have been around long enough for species to have adapted to be dependent on them.