I believe the conclusion is that we don't know for sure about the numbers, but he could have reserved before you, but at a bigger dealer and been further down the list. You reserved later, but may have been number 1 for your dealer, so you got in last week. This is one of the biggest complaints, it isn't just about time, but also about which dealer you chose. Each dealer could also do some prioritization.
I ordered on the first day, there were 408 orders at my dealership in California and I was told out of the 28 that they were allotted for the 22'MY I was 24th on the list. not sure that helps, but at least it's more info.
This has been discussed in multiple other threads. The reservation numbers are only quasi-sequential as Ford runs multiple simultaneous number sequences. This means #4901 is probably much later than #5005.