That's good to know you aren't having issues. The diameter changes were greater for @Ken H. with his DH handling pkg setup, so maybe you are below the threshold.
Wow, I understand why you're frustrated. Based on what the dealer said initially, you would think the problem was the front tires. The new front diameter of 26.8" should be close enough.
My understanding is Forscan can be used to adjust speedometer calibration error, but I haven't seen anyone report using it for the cruise control issue.
It's likely normal. Ford decides what cars it schedules for production on a weekly basis, and I understand there are several variables considered (parts availability for the options on the car, dealer allocations, dealer location, etc.) From the time you order until the car gets scheduled, you...
I'm aware some here have had issues with cruise control not working when running on taller than stock tires. Some have suggested staying as close to stock diameters as possible, and no more than 3% more.
Questions: Is it the diameter of the front tires or the rear that impacts cruise control...