Because too often the criticisms go beyond "I don't like it" or "It all sounds the same to me" and come right after "I've only heard what's on the radio" or "I've never heard one song, but..." I'm not the biggest Swiftie in the world, but I like her music. I, like many here, am a huge music fan. 3,000 CDs, plus, and I get tremendous joy out of a broad variety of music. But here's the deal: i don't feel any need to bash music I don't like (except Radiohead). The ONLY fact I can say about music I don't like is.... I don't like it. I watch my daughter, who has seen Taylor I think five times, get as much pleasure as I've ever gotten from an artist; it speaks to her in a way that my favorite albums speak to me. And as such, even though it doesn't necessarily resonate with me, I just can't bash it.
I really do think she's this generation's Bruce Springsteen; I'm not the hugest Bruce fan (though I've seen him four times) but I recognize his place in the pantheon of greats. What does criticizing his approach - that of the working factory man, even though he has not worked a day in a factory in his life - do? Nothing. He still resonates with millions and millions of people. I find Bob Dylan unlistenable, but it's just foolish to say that he's not perhaps the greatest living American musician/songwriter today; he's clearly the voice of his generation. I think the dialogue around Taylor Swift is similar.