I would argue that in the context of this topic, HTML is not a useful second language. It's a completely different tool, closer to markdown or, heck, Word docum

I would argue that in the context of this topic, HTML is not a useful second language. It's a completely different tool, closer to markdown or, heck, Word documents than an alternative way of programming. (I see your general point, though. Just this combo I'm not sure is the best example.)