I'm a little late to the party, but I say YES they should be forced ON.
Back in SWG I would turn off all the gui and just enjoy flying around inside a Star Wars ship.. it was
fucking fantastic! lol... Anyhow, for balance it would be better for everyone to be on the same playing field and really, the 3D cockpit is just a more entertaining way to express flying in a game. Folks will get used to it and they'll eventually never want to play any other way.
Fantastic art btw.
