I would be surprised if the management at SEN had not invited Wizz for a day out at the seaside. I would be even more surprised if that invitation had been declined. And at such a meeting both sides would have explored the possibility of doing business together and got to understand each other's position. This may well have led to Wizz carrying out a formal assessment of the airport. Why not? If they are not ready now, It could become a useful option a couple of years down the line.