It's completely fair to criticise Signal for its weird decisions (like that time they stopped publishing part of their code for a while to surprise everyone with a crypto scheme.
However, when this criticism comes from an insecure competitor that was forced to pay back immense amounts of money for misleading investors about crypto, I wouldn't take that at face value.
Signal is mostly fine with some weird/bad decisions. Telegram is worse in every single way.
All of that said, I've never seen any of the cryptocurrency shit show up in my phone. Is it geofenced or something?