There was absolutely NO reason in 2019/2020 before Covid that the majority of guests would not know how to use it other than pure laziness or the mentality that everything should be served on a silver platter for them. The system was not difficult. They were willing to help you when your window opened up 60 days prior and while in the park you literally opened an app and just had to choose a ride.
If that was too difficult Genie+ is going to be like taking the Bar and CPA exam in one when you think you have 1 time slot and thenend up with another for starters.