That argument would not hold if someone knowledgeable is in the room as the same time[1]. Silence[2] would be the fork that actually does encrypted SMS and took it when Signal dropped it.
Why give away your SMS to a messaging app that purposely dropped their encryption to focus on online chat which is useless to me as I don't have a data plan?
[1]: https://whispersystems.org/blog/goodbye-encrypted-sms/ [2]: https://silence.im/
though many people are just too lazy to replace even ugly default Messaging app, so wet just use it with my wife and parents since I boycott Messenger/Whatsapp, just in case for video calls I have Skype Mingo (it's sad that out of billion people in India it's difficult to find one person which would upload always newest build to apkmirror)