I appreciate your optimism, but do realize that there isn't really a massive improvement unless you're Google. I don't see this as worthy of the "/2" suffix; Google might like it because it allows them to make their tech standard, but other than that it's unnecessary marketing.

HTTP has never been the bottleneck. I think IPv6 is excellent and a needed, massive improvement especially since IPv4 is no longer tenable. HTTP/1.1, however, still works quite well and keeps a larger feature set in some circumstances. It's less insane because it's not made by W3C or IETF or any other hugely bureaucratic group; however, that doesn't mean it's better either.

I can't wait for HTTP/3! Hopefully this time they won't rush it.