Of course they ditch Ruby/RoR if their customers want to learn the tech that is in demand.
You seem to be agreeing with the article but disagreeing over phrasing?
Ruby and Rails aren't special anymore, there's lots of other languages which can do the same thing but have huge advantages. Then again, that was the case going back to 2007 (Pylons is but one example - the Rails template on a better VM and with more libraries available and none of the bloat and magic). Rails has always been about hype and that hype doesn't matter when other stacks have 10x the performance and are just as productive.
Brb, gonna go kill some zombie fcgi processes.