People are perfectly free to decide how to spend their time based on their own understanding of their tastes without having shade thrown at them. We might think, or even say, that we believe they are missing out, but let's not be snide about it. And if people do object to our tone, especially in a jokey way, the right thing to do is to de-escalate or at the very least disengage, not to start digging at them too.
"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"
