It seems that what is happening with javascript frameworks is what has happened with python web frameworks, which have become splintered thereby dividing the community's mind share.
When I was first looking at python frameworks, I had to spend a not insignificant amount of time evaluating the various frameworks before deciding which one to hitch my wagon to. Had I decided on Ruby over Python, the choice would have been easy given the clear dominance of Rails.
I have limited time to learn new tools since coding is not my primary focus, and one thing that is holding me back from learning a javascript framework is trying to decide which one to dedicate my time to. They all have pros and cons, and I hope a dominant framework emerges soon, and the bulk of the community rallies around it to make it better and better.
Obligatory: https://xkcd.com/927/