Maybe, but I have had all of my family on Signal for close to 9 years now. Inertia and the network effect is a big part of why platforms stay around.
It took me saying to my mum, that I would ONLY share pictures of her new grandson on Signal to get her to install it. Once mum was on board, the rest followed pretty quickly.
The thought of getting mum to install a new messaging app now, and she is nearly 10 years older. Well it isn’t worth the effort. My threat threat model is low enough, to choose the convenience/security slider at Signal.
As a side note, every month or two; another of my contacts shows up on Signal. I have around 50 contacts using Signal now, as I said before around 98% of my messaging is through Signal.
In ten years there will be a bold imitative to embrace history, return to the roots and past culture of excellence. It will be re-branded to Athletics Australia.