Unlucky?
I guess you may be unlucky. I arrived T2 last month (evening) on Monarch A321 . By the time I cleared immigration the bags were already on the belt. There were various other arrivals too.
I shall be arriving Tuesday into T2 from Atlanta, so I shall see how the daytime goes.
Like they say, it's usually not MAproblem - but the airline / handling agent agreement on staff etc that determines how long it takes.