[upofadown]

If an entity says they support a new security feature then the assumption is that they are doing so for some actual reason. So if you throw in that feature then all your competition is instantly at a disadvantage. Few will care enough to do enough research to evaluate the implied claim.

So all that is needed in this case is for potential customers to have the idea in the back of their minds that there might be an issue. The hyperbolic articles about the quantum threat serve that purpose.

So Tuta can be seen to be both a victim and a cause here.