It’s easy (and meaningless) to criticise while not fully understanding what they do.

From an architecture standpoint, this is very similar to building a tree of Backbone views + a few abstractions. Writing OO code instead of a markup language (JSX/HTML) has few intrinsic benefits besides “feels familiar to me”. And it goes head on against the resurgence of functional programming, reactive UI and declarative code. You need much more than “they suck” if you want to profess that your system is better.

Not to say this isn’t worth exploring, but the bold and dismissive claims detract a lot from the project’s idea.