@MJT
I empathize. I was someone who was initially quite unhappy with both the WHAT and HOW of these changes. I took some time and choose to upgrade to 5.8 on my own terms. I can say that with time my sensitivity to the changes is decreasing. I think there is enough energy around the suspension changes that TM will have to make good on Elon's promise. If they can't, that may be a sign of bigger problems and the lack of 1.1" will be the least of my worries. FWIW my suggestion is to find a way to make peace, choose to believe that TM loves its owners and wants to give us the best experience possible and hope for the best.
I realize that I made a big $ bet on this car no matter how you slice it. I need to support that bet. Doing otherwise puts my initial investment at greater risk. I need TM and my car to be healthy 5 - 10 years from now.