considering they only pay the set of landing fees at their destinations and not Manston!
Just because airline & airport are same company doesn't mean they pay no landing fees. Someone has to cover the costs involved, and I don't think Planestation could afford to subsidise EUJet in the way that certain Ryanairports do.
I'm in London a lot and I have only seen one EU Jet advertisement, and that was in London Bridge station.
Would this really be their target market? If they are going to work, they have to attract local users in the Southeast. Granted, LB is the right terminus, but I'd expect more promotion nearer to MSE.
Afaik, I have seen them advertise around Sevenoaks, but not sure how many people round there would use MSE over LGW.