Not necessarily. To a lot of people encryption is "using Signal" or "using WhatsApp". They don't necessarily understand that these are distinct things and that their communications could still be captured by virtue of simply using a phone.
"The strongest chain will break at it's weakest point".
If I as a user, believe that a sequence of actions, from my keystrokes to voice input, which I perceive to be a direct interaction with a secure app are in fact insecure, then is the app really secure?
There is a balance -- one is reminded of the constant "data charged may apply" footnote to so many free services. The same goes here: you really shouldn't tout your impenetrable security without also informing users that things external to the service may undermine its utility.