Actually that is a good find. I have seen another TCM/PCM update a year or so ago that had very specific order of things that had to be done. If not the updates would fail to work correctly. I still believe that many issues some have had might actually be not doing the updates correctly.
Then actually throwing updates at those issues most likely make the problem worst.
I have been lucky and only needed big TCM/PCM update in 3 years. My cable recall resulted in a minor TCM update that worked out OK.
Could not be happier with the transmission in my 2014 except the loss of 2 on the down shift.