Yeah, that's probably what they do to make it more "fun" to play...my bf thought it would be easy thinking about the real drums on the song, but they managed to make it quite difficult in the game...he is not a drummer in real life BTW, but after playing Rockband for so long, he sat in front of a real drum set and managed pretty well....now he want's to play drums for real!
As long as he doesn't bring a real drum set into our small apartment, it's all good, our neighbors would definetely kill us! xD