Was it ever otherwise? Must be enough people enjoy popular things to make them so popular, but I'd wager every last one of us enjoys things others think are absolute crap. I'd be surprised if anyone enjoys more than 10% of all media produced.Yet everything popular seems to be these days.
Back when I had enough time to be giving every anime in each season a try I was enjoying about half of them. I honestly think that's about normal (except if you dislike the medium in general) - Sturgeon's "law" is a load of nonsense (and was never intended to be true by even its inventor - his point wasn't "90% of everything is crap" but "the same proportion of everything is crap, wherever you draw the line between crap and not crap").I'd be surprised if anyone enjoys more than 10% of all media produced.