Agreed. The frameworks provide a veneer, without the behaviors that are actually the important part of the UI/UX.
I'm still reading about it, and our UI is so far behind the curve that anytime I bring elements forward to new paradigms it is a positive gain. Switching to all Material Design would be a vast improvement...but so would switching to all Bootstrap (plus some new interaction guidelines), which is what I'm mostly working on lately. I'll probably experiment with Material Design, as well, but I don't have confidence I could do it well without a lot more research.
I'm still reading about it, and our UI is so far behind the curve that anytime I bring elements forward to new paradigms it is a positive gain. Switching to all Material Design would be a vast improvement...but so would switching to all Bootstrap (plus some new interaction guidelines), which is what I'm mostly working on lately. I'll probably experiment with Material Design, as well, but I don't have confidence I could do it well without a lot more research.