Another theory: when you swipe and don't get a match, that could be considered a rejection and women are worse at handling rejection (probably due to never having to learn to deal with it). Men, on the other hand, have to learn to accept rejection so little is felt when almost all swipes don't match.
Most people (all sexes and genders) are bad at handling rejection, period. It’s why online dating is popular in general—a rejection over a digital medium is a lot less intimidating and less confrontational than the same in person.
The rate and experience of rejection does not seem to be symmetrical across the sexes by a significant degree. Of course nobody likes rejection, but this point doesn’t really advance the discussion.
They were responding to "women are worse at handling rejection", and if they disagree with that (as I do too) then it is advancing the conversation to say so, even though it doesn't advance a part of the conversation that specifically explains dating app use.
