I think it's your use of "similar" that creates confusion and makes it sound like you were saying you could do as much in shorter time as someone else did in a full day. "Similar" means just that, similar or put in different terms: nearly the same, closely resembling, could be mistaken for each other. Similar doesn't mean "less."
I think it's a vast misconception among those with disabilities that "the average guest" is in the parks rope-drop-to-close. The people who post "we did XX rides today" are likely the over-achievers -- those who do the super long day open-to-close, who eat on the run, avoid shows/parades, small party of young heathy fit individuals who are park veterans and know the ins and outs of how to get around and make good use of their time. That is NOT the average park goer. I suspect the "average" day is somewhere around 6-7 hours and includes meal breaks, parades, shows, shopping, etc. not just rides.