SNI encryption is only useful if the website you're visiting shares the IP with lots of other websites. E.g, they're sitting behind cloudflare.

When you visit any of my websites, which are not on shared IPs, then not only will you continue to inform your ISP that you're doing so (regardless of the existence of ESNI), but you will additionally be informing cloudflare too.

What's your solution? That I centralise all my websites behind Cloudflare? In the name or privacy? Laughable.