I think it’s a lot of different reasons. Governments clamping down on emissions/ more new cars in past couple years like GR86 and GR Corolla eating into companies r&d for the civic to go along with less companies then 20/30 years ago. For instance how many options do we have for intercoolers...
I think you can get the jail break done and buy the flash pro later. But that is a great question hopefully someone who has been to one of these can chime in.
Just got this same error while taking the car in for PPF. Car only has 300 miles on it so when I pick the car up next week from PPF will be taking it into the dealer.