Is this really an issue? I clicked the help files in windows and it always opened in IE6. It wasn’t more than an annoyance. Can you uninstall edge? I think it’s a sensationalist topic, it’s closing a potential security hole if FF or other browsers aren’t updated.
Do I agree with it? No, I use Linux but it’s really not an issue that hasn’t been around and isn’t easily ignored, and many people may never encounter it.