If Joe Blogger can setup LAMP, he can setup ACME. If Joe can't setup LAMP, Joe will use a web host that does all of it for him including HTTPS. If Joe picked a host that's incapable of securing sites, Joe needs to switch to any of the dozens (if not hundreds) of competitors that can get this right.

Joe Blogger is not expected to setup a VPS, Joe Blogger is using shared hosting or a blog-as-a-service, and thus leaves worrying about how to implement HTTPS to someone else.

So the death of self-sufficient, independent Joe Blogger espcially if that "someone else" is his hosting provider who doesn't handle Letsencrypt.