I'm not actually all that keen on the idea of magical, instant support. Watching the development of grid layout over the last four years has shown me how specifications get better for having time spent on them by a range of parties. I wrote a bit about that process last year rachelandrew.co.uk/archives/2015/11/03/three-year…
If I can change one thing, I'd like more people to get involved with that process. I'd like to see more web developers and designers taking a good look at emerging specs, the things that are hidden behind flags, and offering their thoughts and feedback.