As I have worked in airline RM and CS I know how to deal with situations without being belligerent or pushy and I also know that throwing the 'gold card' on the counter doesn't impress anyone. There are however certain privileges and rights that one is entitled to, and airlines sell these benefits across alliances with the promise that they are 'seamless'. When this fails, there is disappointment and loss of confidence.
I do expect a high standard and I do complain when it is not delivered, but I am not hard to impress, I expect fair treatment and on this occasion that was not given.
You are right, my comparison of AT with AC is a little unfair as I was comparing economy service, but the comfort level of AT is as good as AC economy and they seem to care about their passengers, which is more than has been my experience of flying with AC in any class.