I would hardly consider that the people making these comments on social media - usually in response to a comment questioning how it could be unviable given it’s got the longest runway in Europe/used to be an emergency landing site for space shuttle - are in any way informed.
In fact, it’s well documented that FlyBe based their E-jets at DSA under project blackbird, in which FlyBes costs were underwritten by DSA and CWL, this proves beyond any doubt that Peel had in fact been actively trying to generate increased flight offerings. I myself have flown into the airport countless times in the last few years, albeit in light singles and twins, and can assure you I did not pay much for the privilege.
The model was based on stack em high sell em cheap. Peel have found, along with easyjet, FlyBe, Ryanair and possibly Wizz, that demand has consistently not met expectations. Therefore the whole model it has been built on is not viable.