I am sorry, but we have had this before, it is hardly a trial to walk through the shopping area into the departure lounge in T2. As for can't find the gates I am speechless.
I regularly use T2 and rarely if ever shop and it takes a couple of minutes to walk through.
Finally there are a long list of airports that use the same, walk through the duty free area to get to the gate style, Manchester is far from alone.