That's too broad. By that logic, the Tony Hawk games also belong in the Simulator forum as well.
Donkey Konga simulates playing bongos.. in the jungle, as a giant ape. Does it belong in the category Simulators? I say not. Yet the gameplay and goals are similar to Guitar Hero.
I think what would help here is rather than us argue about which games are simulators, let's find a good definition of them and then apply it uniformly. There will always be some edge cases that give somebody fits, but at least we'll be consistent and people will be able to find stuff.
Wikipedia has a long article on the topic of simulations. I was struck by this statement:
So I think what we have been arguing about is simulation versus simulator. Many games these days contain some simulation, but their purpose is not to be a simulator. "Simulation" is therefore not a very useful way to partition the forum. "Simulator" is useful.
Happily, the forum is named "Mac Simulators". Just about the only thing wrong with it is that it contains some posts about Guitar Hero.