That's the issue: he calls them tomorrow's languages, implying that they need to change ("can you marry modern thinking, build a community [...]) before getting

That's the issue: he calls them tomorrow's languages, implying that they need to change ("can you marry modern thinking, build a community [...]) before getting there, or being "today's languages". So far, I still haven't seen anything better than Rails to solve yesterday's (and today's) problems.