I think I can answer that question for you Skystar, from a pilot operators perspective the F50 is a fantastic peice of equipment even by todays standard (IMHO) over a 200 nm sector it doesnt make a lot of difference over any jet. XR has historically been a sound operator, however it operates principally in an RPT market, which is a different ball game to the contract charter market.
The Market "wants" a jet, the governments "want" a jet and as impractical as that may seem, thats what they "want"
Virgin has answered the call with the E-Jet as impractical as we all saw it at the time, but years on here we are, the E-jet perfectly positioned for exactly that role.
XR on the other hand are not, the market sees the F50 as old 1950's technology, dinosaurs, which should have been retired years ago and whilst the Charter market will accept that the modern day core RPT market will not.
It's sad, but a fact of life and XR will most likely become a casualty of that fact.