Pretty sure it will. Simple math. If fewer people are able to ride ToT with FP, then less of the ride's capacity is dedicated to FP users. Therefore, more of the rides capacity will be dedicated to standby. If more of the ride's capacity is dedicated to standby, then the standby line will move quicker. If the standby line moves quicker, I won't have to wait in the standby line as long as would have. Then I can hop over to RNR which also will have less of it's capacity dedicated to FP users.Not really.
Star Tours on the other hand....