Some of it is echo chambers. If you're in the React community, that's all you'll hear about, same for Angular. The Angular conferences I've been to are MASSIVE. Easily some of the biggest conferences I go to. I don't think it's going bad for Angular at all, and I've seen a lot of growth.
Now that said, I do think there things Angular can do to improve, and I know they're doing those things. Making Angular simpler and faster being the primary thing there.