NO! It is not bad. Not just Sparks Fly of Taylor Swift but any artist or music.
One of the emotions and purposes behind music is to relate them. It's one of the beauties of music.
To hear stories and atmospheres that you can feel and relate closely, to hear someone speaking the words you can't spell, the fears you can't express, the pains you can't scream and the situation that nobody can understand.
I relate to the most and actually all of Linkin Park songs. It's part of the reasons i fallen in love with them.