I view Proton Mail as the convenient 99,9% case. It's a very polished service and it seems to offer a somewhat higher security baseline than the other email providers which probably don't even try to do anything encryption related.

The maximum security manual OpenPGP 0.1% case is still absolutely necessary though. No doubt about that. Anyone claiming that Proton Mail solved this doesn't actually understand how OpenPGP works. Not that I would fault them for failing to understand this ludicrously complicated stuff.

It is but if I exchange emails with a Protonmail user I am writing with them like there is no encryption present.

Of course you are right, if majority of individuals were informed and if protonmail was proactive in informing their users about short commings. The problem is that most users are not informed and they think that protonmail is the bee's knees of email privacy and security, while protonmail only promotes that myth.