They cut frequencies every winter so it has nothing to do with Brexit
They cut frequencies on leisure routes every winter compared to summer across their network and they also further cut frequencies on low days in deepest winter compared to peak winter leaving numerous airframes temporarily parked up. Winter cut backs reduced significantly at STN following the volume based deal with MAG but now they seem to be reverting to their old ways and blaming it, rightly or wrongly but very conveniently, on Brexit.
There fixed that for you, no need to argue anymore