...Why all cars weren't run through the process aready is a complete mystery to me. I obviously don't get it.
The ITAC had discussions about doing just that going back about a year, to approximately the point where we got really serious about establishing standard practices around the last few wobbly places in the process and codifying the results. Given the very limited number of cars that were done in the first GR, and fears that the CRB would balk at being asked to revisit something that was sold as a one-time-only deal, we were feeling our way along pretty carefully.
As recently as immediately following our August con call, that idea was still in play. In fact, our CRB liaison asked whether the comprehensive spreadsheet we'd built for ITB cars would be representative of what they could expect from a total "do over" or Great Realignment II. I was dead set against it because (you listening, Travis?) that list of 80 cars(!) all used the standard 1.25 power multiplier: None had been through the confidence-tested review step that is (sorry, "was") supposed to look for evidence that a different value should be used. That WOULD have been an overly formulaic application of the process, completely ignoring the crucial - but controlled - application of subjectivity that the system deserves. That's a powerful reason that I advocated for doing them "just in time" in response to member requests, by the way: We didn't just plug the numbers mindlessly into a spreadsheet if it looked like our assumptions about power (stock HP, 1.25 multiplier) didn't stand up, so each car took time to work through.
About that same time, it was requested that Andy explain the "new process" to the CRB - ignoring our protestations during con calls that we were doing pretty much what the Darin-era process described, only more consistently, with much better record keeping, and fewer - like nearly zero - opportunities for shenanigans.
(You're going to have to take my word for it but in the time I was on the ITAC, I don't recall a single instance of the "horse trading" of pounds by members with different opinions, like resulted in that Civic DX getting listed 300 pounds heavy.)
These inquries, the lack of action on recommendations made going back several months, and finally the Audi weight bouncing back to us after Andy's call with the CRB finally began to make it clear - at least to me - that the CRB didn't have much inclination of letting the ITAC finish the business it had started.
We LITERALLY had just finished the reviewed draft version of our documentation of the process (v.2 if you adhere to the idea that it's different enough to be called that). While clearly NOT all in agreement, we were talking about how to disseminate that information to the membership. (That's called "transparency.")
In short, Mike - the answer to your question is "because the CRB didn't want it to happen."
K