1. Not everyone buys G+ at 7am. I'm sure there are a ton of folks who arrive to a park at 10 or 11, see the massive lines and say "well, I'll just buy this line skipping thing" and think they'll be able to ride a lot the rest of the day with that
2. not everyone books additional rides as soon as they can. Some people forget or don't realize they can do it sooner, etc.
And I'm sure there are other reasons. So, sure, someone using the pass in a reasonably aggressive way will always be able to get a number of solid choices. But that doesn't mean there weren't users who used it suboptimally and only got 1 or 2 in a day.
This was our experience, we went to HS in Jan 2023 after doing a RunDisney race, we got to the park about 10am and all the big rides had an hour + wait, we hadn’t done MMRR yet so that was our top priority, G+ had availability for nearly everything so we bought it and got a return time for MMRR for like 5:30pm, we were ok with that because we had a 4pm ADR at Prime time, we did a couple shorter line attractions (alien saucers, Star Tours, Indy show) and by a little after noon our window was open for our next G+ selection… Slinky Dog gone, RoR gone, TOT gone, RnRC gone, Smugglers gone… I think the only thing still available was the shorter line attractions we’d already done, a couple meet and greets, and TSM at something like 8:30pm, not an option with a 2am alarm set for another run the next morning.
Is our situation unusual? yep, but that didn’t change the fact we felt completely ripped off and we talked to other runners who had very similar experiences and felt equally ripped off also.
Genie may have worked if you had availability from open to close but if you had time limitations, whether for something like a sporting event, a convention, or simply children who can’t be out late, it didn’t work. We were in the park from about 10am til about 7pm on our day, we managed Alien saucers, Star Tours, Indy, BatB, and Muppets in standby and MMRR with Genie, the rest of the day was spent walking around eating, drinking, hanging out with friends and shopping… had we not bought Genie it would have been a good day, as a result of Genie we left feeling ripped off.
I’m thrilled they changed it, the fact I’ll get 3 guaranteed rides before I have to decide whether to spend my money or not is a huge upgrade in my book.