I would interpret it as a push back to using Javascript for everything and anything, unless it's clearly marked as this is for fun and a learning experience. Pe

I would interpret it as a push back to using Javascript for everything and anything, unless it's clearly marked as this is for fun and a learning experience. People will easily jump in and say but why Javascript? and the answer is almost always that's the only language I know how to use. Using one language for everything doens't impress good engineers (or developers). Not my opinion, but that's what I felt in the comments of the linked post.