Honestly this sounds like even MORE work and stress. I'd rather just deal with the person making a stink. Taking requests 1st, 2nd, and 3rd from a group of people ranging in size from 5 - 13 (depending how many people are together at that moment) up to 39 requests, and then going to the kiosk, waiting in line and trying to keep all that straight in my head ... no thanks.
We just didn't need to do this with legacy. We just pulled FPs for rides as we toured the parks, we never felt limited in the FPs we would get so there was no worry. No one would complain in Tomorrow land about pulling an FP for Space Mountain, because they knew that when we made it to frontier land we would pull for BTMRR. We didn't need to manage expectations. Now MK is still pretty ok, though we had less availability with FP+ than with legacy FP on our last trip, the other parks are FAR worse. There is just no way we are getting as much done in Epcot, or HS, or AK. Sure we can always rope drop and get a ton done, but we could ALWAYS rope drop get a ton done, have greater access to FPs for the rest of the day and shorter SB lines. In no way does FP+ make this better.
Its one of the things I just don't get when people complain about FP+ and the response is "you can still get a lot done, just rope drop" ... um ... thats not a new feature of FP+. That was always an option, but beyond your RD you had more availability ahead of you. Of course on the busiest times of year I can see how FP+ looks better for later in the day arrivals and for night arrivals, but moderate crowds and lower crowds, not really. And those advantages of FP+ are really only felt if you would have skipped the rest of the day anyway, or would rather skip the rest of the day. All things included, if you look at the ability to get things done from park open to close and assumed you would take advantage of the entire duration of park hours to ride rides, I can't see how FP+ is a net positive. In particular situations and with particular touring styles it obviously is, those styles and situations just don't usually align with ours, except arrival day perhaps