They managed to create a business model relying in some sort of "slot machine" where customers buy the ticket to discover later they are "stupid" not noticing some rule hidden in the meticulously engineered dark patterns and, to board now and do not miss the planned trip, they will have to pay an expensive fee.

It is still impressive for me they managing to be this good in being nefarious at same time they have to worry about executing the service in such a complex industry.

The cherry on top is their social media, successfully bringing humour to alleviate and to make all of this acceptable, as it was just part of a bigger joke.