There's a few things you got wrong in previous posts and some that I think are wrong here but I'm not 100% because I don't fully know if in this second post you're saying what I think you're saying.
For the past posts, USF didn't zoom by UCF as much as you think they did. I would say 8 years is the true gap, the time between when you joined the Big East and when we joined the AAC.
"Well yeah but we got the Big East in 8 years and it took UCF 30+ years of football to-" that's where I'll stop you. You gotta look at the big picture. Yeah it looks like a monumental lead but now when you consider that it shouldn't be just based on when the schools started playing football, but relative to the age of the school as well. UCF started playing football 13 years after it was founded as a school. Of course we went D3, we were a young and tiny school. USF started football in year 41. I guarantee you that we would have risen as quickly or USF just as slowly if we swapped when we started football. USF as a school in year 41 had more support, money, and athletic history than UCF in year 13. So of course they only spent 4 years in FCS and never had to go D3 or D2 like we did.
The second part relating to your post I quoted. I'm not sure if you're saying UCF chose to stay in CUSA when USF went to the Big East. If that's the case, we chose CUSA but not to stay. We weren't in CUSA. Since we moved up to FBS we were independent and then found a home for football in the MAC. But the opening in CUSA left behind USF and the other Big East bound teams provided a better conference that made more geographic sense than the MAC and we could put all our sports in there. This is where we were behind. We went MAC to CUSA while USF was going CUSA to Big East.