You keep saying this but not providing any evidence. I just read the entire issue thread on Github, and yes, you have to use the bridge. (If I missed a comment, please link directly to it.)
"Nobody cares" and "this is a complicated thing that we've spent a year+ building a replacement for" don't seem very congruent to me. That said, it's a rather awful issue for a service like this to have for that long.
It makes it seem as if using just protonmail could result in deleting a wrong email. This is not the case, you have to be using proton bridge.
People who care about protonmail but don't care about proton bridge have to click the link to learn that.