I really did loath the removal of SMS. It went like this for me: I would set up non-techie family with signal and that would be SMS and secure messaging for them. Then Signal removed SMS, so I had to explain to them that I had actually set them up with something "unstable" and needed to change their apps around. As a consequence, they're more hesitant to try things I suggest and I can't blame them. As for the actual messaging, inevitably they'll forget to juggle apps and just default to SMS and there's only so much I can go against the stream here.

This is cool, but I think being the default in the mainline app is critical. Also, iirc signal doesn't like modified apps, so this might be on shaky ground.