Seems very unlikely to me, where did the report come from, as there is no mention?
Some disaffected employee/ex employee, sour grapes?
Whilst I am sure things could be better at Luton, I doubt if there will be an easyExodus from Luton.
Unless a new runway is built in the SE of England, slots at the BAA airports will dry up (They almost have already). Luton has massive capacity potential if it can keep its customers happy!