No. If anything, they're not serious enough, in that they go for the childish "dark&edgy" style instead of trying to actually tell compelling stories.
It's pretty obvious you haven't seen the Marvel Netflix serieses then (although granted those aren't "movies")Exactly. Which makes your post utterly irrelevant.
I have in fact watched Jessica Jones (which I liked, despite some issues toward the end) and a few episodes of Daredevil (which seems all right).
But I don't really see how you can say that about the Nolan trilogy either.
Don't consider them "modern". They kind of belong to a previous era to me for some reason.