No, it's perfectly reasonable to not like popular music. I was only responding to what I perceived to be amazement in your previous post that someone is claiming you might find a way to enjoy ABBA: I was claiming that, since a lot of people do enjoy it, it shouldn't be hard to imagine that you could find something to like one day.

Conversely, if you said you don't know how you could possibly enjoy, say, the Plastic Ono band (Yoko Ono's band), then it would be harder to suggest it's even possible (not to say that enjoying them, for anyone who does, is in any way wrong!).

My understanding is that they say "it seems pretty reasonable to think that ABBA is of good quality, given all that", and then "because it is good quality, then it doesn't seem completely implausible that you may end up liking it someday".

But again, you don't have to of course :-). But I agree that it feels more likely that you may end up enjoying quality music you don't like now than bad music you don't like now!