I agree with Tagron that it would be useful to see the source of the figures that asdf1234 quotes. It's all a bit too like hearsay as it stands, although I'm not disputing that it may be so as I'm not in a position to do so.
As far as Stobart applying for the potential subsidy on offer for CAX-SEN is concerned I would suggest that, if they think the route may qualify, it's simple business sense to make an application. I don't think that doing so reflects badly on them or their airports in any way.