It all depends on how they implemented ATSOCAS.
Also what the airlines want.
Southend though do seemed to have pissed off a large percentage of the local airspace users that don't use the airport.
They had an airprox with a jet and a commercial helicopter last year due to the helicopter not speaking to them. Which seems pretty common practise in the area.
Its all to do with de confliction service and them trying to get a sterile approach 5000ft high 8Nm by 10Nm and controlling VFR out of it.