There is still a lot of room for innovation in the space, that is why you see so many attempts. WebRTC stagnated for quite a few years. The same people were building the same things, and everyone assumed the space was done.

I think it is worth building these things. You never know the impact it can have. These projects also inspire others. Even if this project doesn't take off it could inspire someone else to build something that has a lot of impact.