Not sure we can really blame the authorities to turn a blind eye on the situation. As long back as last year they specifically laid on BREXIT to get rid of Vanair,
which somehow has gotten overlooked by the mainstream media that focuses on other minor side effects of triggering Art. 50.
So sad.
More seriously - as I take the stance of the UK and the EU at this point, Brexit would mean an end to Vanair doing domestic flying around the British Isles unless the UK and the Czech Republic enter into some sort of far reaching aviation treaty?