You might not know or care , but AR certainly does and should, that this is not a small number of people making a lot of noise about 'nothing'. Whether 6 or 76 - there is definitely a 'something' which needs addressing.
Have you even driven an effected 2.2?
If you are that concerned for AR's reputation perhaps you could join with us and write to them explaining that even though you are unaffected, the minimal expenditure involved in a 6 / 76 car fix might do wonders for their cherished image.
You seem to be both critical of those that raise the issue and also critical of others for their inactivity. You have obviously given the matter some thought - have you any advice for the progression of the matter?
I don't mean to be critical of those who have done what Alfa has asked (i.e. taking their car to a dealer for this specific issue and getting the dealer to report back to ARUK), just of those who have done nothing, or those who have done something else instead.
The only way they can reliably get a handle on the issue is if people take their cars to be examined - as I said from their point of view
6 out of 2400 isn't really a figure to worry about.
Other than the Cloverleaf track days, I've only driven 3 2.2s - one each of Spider, Brera, 159 - from this thread, I understand that all the 2.2s are affected. I must admit that I didn't really notice the hesitation issue - if I drive another, I'll make a point of looking for it.
As for what to do next - if it were me, and:
- all the 2.2 cars are the same
- my car had been checked and found to be performing as expected
- 99.x% of other 2.2 owners were perfectly happy with them
...then I think I'd take the pragmatic step that Nev has, and acknowledge that AR are never going to "fix" a "problem" that only affects such a tiny proportion of owners. I'd get my car into Autodelta for an afternoon, and get on with enjoying it.