Quote from the Masterplan
"However, LBA currently captures only 32% of the short haul demand and 4% of the long haul demand generated by Yorkshire and the Humber region. This illustrates the potential for growth that could be achieved by meeting the travel needs that arise in this region alone."
Or to put it another way - why have we been failing for 40 years?
No what this illustrates perfectly is that there are fundamental issue(s) that are stopping LBA from realising the potential [to satisfy air travel demand] that exists within Yorkshire and Humberside over many years. That issue is (location allied to accessibility [all modes]) and (airfield characteristics allied to elevation and associated weather). The only way to realise this potential is to relocate.