One of my biggest kpop fan pet peeves is the idea you have to love every single or you’re a fake fan. Especially if it’s a concept different from the usual, a member wrote/produced it, or it’s from an underrated group. I don’t care how much effort went into it, what member did what, etc. A bad song is a bad song. Not to mention music is subjective in the first place.
If someone isn’t outright bashing it, mind your business.