I still don’t understand why Angular hasn’t died out. It’s very hard to understand and the tutorials can’t simplify that because it’s just inherently very complex. It feels highly over engineered like classical Java. Instead of allowing you to opt into more complex features as needed like a good framework should do, it forces you to learn its steel curve up front!
I really enjoyed Angular 1.x, was not happy with the 2.0 version (other then they fixed some critical performance issues with scaling websites). It was perfect for making simple single page applications for internal use at an an eCommerce company. POS, Order Processing, RMA processing, Research, competition and price controls, inventory & warehouse management, etc. I use ReactJS for large applications these days.
I think it's due to its enterprise users and customer bases, and never underestimate the power of legacy code base inertia that often keep these types of things going.