We're keeping one alive with friends, not because we need it, but because we can and it's easy to do so.

We can argue matrix has not the most fancyful clients right now, and it might not be a perfect solution for everybody, however there are many clients to choose from, you can write one easily with many support libraries, it's easy to script, you can have full control.

This is what we should push for. I've recommended signal to a lot of friends, and I currently feel stupid for doing so: It was a hurdle to convince them, and what I achieved was to move some to another privately run network with arbitrary rules and mandated software controlled by a single entity which is now starting to do random crap.