Have you filed a bug somewhere in the issue tracker? I don't think anyone from the GNOME devs is using a surface, so if you don't provide any info, there's a good chance they don't even know about it.

and support it properly, with stuff like reclocking now actually working

Well, the other thing Ben just posted before leaving is the initial support for GSP in nouveau (now continued by someone else in his team), which means we can finally start doing things like reclocking. With this and other cool stuff like nvk coming up, we finally have a way forward to have a good upstream experience.

Both. Ben's taking off for personal reasons (it's literally written in his email, but people will still try to pretend it's related to the recent kerfuffles with Red Hat)