I don't think nemesis alone is a stand out draw at least for a bit of the GP (of course it is for enthusiasts and for quite a few if the GP as well), as people at the moment still come for the smiler and its fandabydosie 14 inversions, all my friends in college and work just want to go for that ride my friend preferred smiler for that reason. Not saying that's my opinion because I pretty much only go for nemesis lol but yeah when ever I go Nemesis always has a small queue whereas Air's is huge, now that might be due to capacity of said rides and I'm not saying it isn't popular because it sure darn is!! but I would definitely say every time I have gone Air has been the more popular of the Forbidden Valley rides, so who knows maybe because of this maybe Merlin thinks it needs a stupid gimmick, who knows but yeah I'd rather it stay as perfect as it is now and it not be ruined...