But that would still be easier to convince someone to sign up for Signal or whatever other app if it came in a unified inbox. I just started using Beeper a couple of months ago, because while the security concerns are valid, it is really damn convenient.
I went back to cable and got an old cablecard and networked tuner. No rental fees for a box, and I can stream it wherever without checking in or dealing with location restrictions, and my DVR is still mine even if I leave and subscribe to something else.