I sound a bit more negative than I really am. I think both kinds of learnings (deep and broad) are useful, you just need to make sure you adjust your brain and technique of actually assimilating things to the type of learning you are doing.

I've learned quite a few languages/libraries/frameworks/methodologies this past year and while I don't feel like I'm an expert (or even reasonably well versed) in either of these, this broad exposure to vastly different things has stretched my brain in positive ways.

I'd just like to switch that trend for next year.