Great article. A lot of these libraries enhance or improved flux original approach.
Any Library that can help you write less code is the Holy Grail of development.
Anybody can do it better. Question is how many GitHub contributors are you going to get. What is your job prospects in using the framework. Everybody is trying to build the Holy Grail framework and each framework has a learning curve. In the end if I have to write less code to do the task then that is a Holy Grail framework.