I take it you've never flown out of MAN....?
Guilty! But even MAN didn't (2 years ago) have such a convoluted system as at DUB T2 and whereas UK airports seem to be victims of bit by bit renovations/renewals, the terminal in question was a clean sheet from the start and it could have been made into a dream such as many of the new terminals in Germany (i know, i know).
SHJ