(i am a security person who prioritizes security over usability but) you missed the point a bit. If a privacy program is used only by people that have something to hide it turns into a smoking gun. If you care about being targeted by government you should really hope regular people use signal a lot, because government absolutely has (or can procure) a list of people that use signal.

Bro, my mom uses signal with her friends and she's like almost 70. Signal works well enough.