A bit harsh. PIA, Easyjet and a Ryanair base, all helping to get passenger numbers up to where they were before the recession started would probably count as success in most people's eyes. I'm sure there may have been more had the economic conditions of 2004 - 2006 remained unchanged, but they didn't. Therefore you have to judge performance against the rest of the market and not so much against things that may have been reasonably expected a few years ago.
Also don't underestimate the stuff the airport have done behind the scenes in terms of working with the business community, local tourism agencies etc which has moved on considerably under the new management team - particularly around educating what is available and laying out where LBA can be an alternative to MAN.
I think they'd be the first to accept there is a lot more to do, but in the context of the economic woes of the last few years, there is equally a sense that some progress has been made