EMA, whilst devastating for crews based there, was closed 7 years ago under a different management team. The U2 of today is very different. Smaller bases fit in with the strategy now, however the previous CEO and his (long gone) ops team wanted just a few large UK bases. Thankfully this was stopped by the new leadership, UK has gained a new base and things seem to tick along nicely.
It's a highly successful airline. It starts routes on which it will make money. It doesn't open huge amounts of routes just to take a punt on what might make money, which is why you never see huge lists of new routes, or 'massive expansion (one aircraft often), £100,000,000 investment, 100,000 new jobs, billions of £ for the local community' like you see from another airline.