These modern day plonkers that sit behind a PC and type such things as "New York charters from Oxford" and, now, Shoreham to France/Paris.
Never mind developing pretty websites, just investigate the expected difficulties of operating to/from a base that doesn't have an ILS never mind piss poor public transport links erc.
And as for check-in as little as 10 minutes before STD, presumably for pax with hand baggage only, well it takes 10 minutes to walk to the aircraft, get everybody seated, start engines and taxi never mind security clearing 20 odd (10 minute before) passengers.
Great in theory but it would never work in practice.