APD wll kill it. Also don't forget MAN is a great hub with good transport links and a huge catchment area. Don't like LHR.
Post 137 has LHR having
122 Westboud daily scheduled flight. The comparable MAN numbers is around
11 legacy scheduled (AA,AC,SQ,UA,VS). Even when you throw in TCX and TOM, it's not even close. MAN is a great airport, but it is not a hub in any meaningful sense of the world, it has no based hub and spoke carrier.
APD has been around for ages and has slowed the rate of growth but it's not reasonable to go as far as you suggest.