Genie+ is price discrimination in action. Companies are always looking for a way to take more money from people willing to give it. At
Disneyland, I think the system works well because of the large number of locals and passholders. It gives people visiting from out of town, like myself, the ability to pay more for a better experience. By not providing an option for an unlimited add-on to MKers, I think Disneyland finally “fixed” MaxPass/FP. The amount of time I wait in a LL is far less than what I used to with FP/MP.
If they were to completely get rid of the system, I would spend more time in lines and get on fewer rides on our visits than I do now. So personally, it is why I appreciate the system.
Note: it sounds like the whole system is far less workable at WDW. I think it’s because of the attendance makeup. Far more out of towners and people willing to spend more for an upgraded experience.