I agree and I would not even say, that my preferred solutions (mainly #Jabber or other federated systems) would be more secure for the threat models Signal tries to counter.
But, of course I can't recommend Signal to my family or to my friends, because they would not be able to reach me then and would wonder why I don't eat my own cat food
However, esp. with #Quicksy (which has an Indian variant now, called #Prav), I'ld say it's equally easy to get even non-tech people on board.