Yes.
Not really.
It's a subjective statement, and an opinion that the OP is entitled to, right? I'm sure that it takes hard work to do what performers like Swift do. However, that doesn't mean they have musical talent. I am a hardworking technician, but I don't think I have much talent for it. I try to make up for it through effort, but someone who really does have talent for what I do could do it much better than me.
I'm not really an insider to the entertainment industry, but I know some people on the outer fringes of it. Marketability is key, more than talent, since "talent" is a hazy subjective concept that doesn't necessarily produce the numbers needed to sustain operation costs. A person with the right marketability can be trained to make up for what they lack in talent.
Also, it takes talent to recognize talent. That is, those highly skilled in music are more likely to pick out the intricacies in a piece; they are also more likely to recognize something that is mediocre, just dressed up in high level production. Of course, the majority of the audience is not likely to be scholars of whatever art form they are indulging themselves in. So, you could say it's almost mandatory that the things that are popular, that sell well, have to be "middle of the road" to appeal to the mainstream.
I'm not saying there's anything wrong with that (I have zero musical talent myself and can't tell the difference between manufactured crap and something truly innovative; predictably, I also listen to the radio), and I'm not saying any of that necessarily applies to Taylor Swift. I just felt like going on about...about nothing, now that I think about it. *fails*