It could be a good stable framework, though can you put yourself in my place, say in 5 years you are called to work on your current project, some new small feature must be added or some bug needs to be fixed. So I will have to learn to work with yet another old framework that is no longer populkar and the developers that wrote the code moved to the next cool thing.

It is what it is, I will have to learn and maintain others code like I always done but it would be better if we had some stability as I mentioned, some standard web framework built in JS and browsers that most developers would use and the devs that want new and shiny could ignore that and use whatever.