Reverse IP doesn't necessarily tell you much - especially with the predominance of "shared hosting" (or even cloudflare type services). The IP address could potentially be one of 1000 sites, so your ISP shouldn't be able to tell what you're actually looking at (eg they have no idea if you're looking at porn, nazis or just reading the local news paper).

Sadly SNI destroys most of this privacy, but leaking less shouldn't be a bad thing. There's also other reasons you don't want people intercepting or re-writing your DNS.