Seriously, problems around things like refinements aside, it seems to me that Ruby is progressing faster and more regularly than it has for years. Yes, it sometimes takes major alarmist posts by non-MRI implementers to get the attention of enough people to get a course adjusted (e.g., refinements), but I think that we're seeing much better collaboration and development on Ruby and more compatible Rubies than would be possible with the RCR mechanisms that were previously involved.
Imperfect, but by keeping to the tools that the main developers already use (email)…it is less problematic. I also think that it has helped that there have been implementor summits at several of the major conferences. Further, I think that it's helped that Matz himself is also working on an alternative implementation (mruby).