Imagine a WDW ticket as a buffet.
Some people are able to eat 15 plates of food including pounds of expensive beef/seafood. This is like a guest knowing how to maximize attractions and get many rides on headliners.
What if there were other customers that didn't know how or were unable to access the food as well and all the expensive trays of food were empty during the most convenient times because the other people knew best when to fill their plate and did so before these ones had a chance. What if these customers were willing to buy drinks and sushi upgrades or whatever but because they were dissatisfied with having to jockey a position at the regular buffet they're not coming as often.
What could the business do?
Sure, WDW is looking to get as much of our money as possible but maybe Genie is also directed at addressing spending/experience ratios. This system is being more precise in pricing. It can't be said that all of a sudden Genie is making WDW a class system. There has always been people with less money couldn't afford to go, or maybe managed getting a park day or two while raising their family. They did not get the experience of the average guest. Not that much different to what's going on here. If we're going expect Disney to let the higher spenders cover the low spenders now, why weren't so many people also saying that a decade or two ago. Maybe because it didn't effect them then?