I see the point you are trying to make, but I don't think it's that simple. Just like it's not necessary to wake up before 7am to make your first LL reservation with Genie+, it wasn't necessary to make your FP+ reservations 60 days out to utilize FP+. You could also still utilize FP+ without understanding the "modify" technique that allowed you to use FP+ to tour for the majority of your day. If you didn't know about FP+ prior to your trip, you might not get headliners, but you could certainly still use FP+! Ie. on a busy MK day you might not get SDMT or PP, but most other rides you most certainly could! And preferred ride times to boot

And if you didn't get what you wanted, at least you weren't paying extra for it! Now you pay extra, may do all the research and STILL not get what you wanted or expected.
By your comparison, you are assuming that the CM is going to give a rundown on all the intricacies of Genie+ (and there are many), to get the most out of it. Like which ride reservations to make first, how to stack, how to utilize it if hopping, review LL vs LL+, what to book first based on what fills up first and your preferences etc etc etc. I don't think a CM is going to be able to give the same run down as you'd get here, or other frequented sites or blogs/vlogs.
So yes, they both have their advantages vs disadvantages. But I don't think non planners will have level playing field with those who did research before their travel. Add to that ongoing tech issues with
MDE and frequent rides breaking down that make it all more complicated.