"But it does not work. I flew recently EMA- VCE and back with EZY, and it was a real bunfight when boarding. I felt sorry for those who paid for so-called "Priority Boarding" on the way back - at VCE everyone goes on the same coaches to the remote stand, and the only "priority" given is that you are first on the bus. Big deal. That is taking money under false pretences."
It does work but depends on the Airport.
I've done it on a BCN-LGW flight and key thing was getting to the front of the bus, driver clearly directed speedy boarders there. When bus came to plane he opened door first and ensured everyone who was a speedy boarder got off first before opening the rest of the doors.
Normally not an issue as most flight I have taken from BCN have used the jetbridge but this was a delayed flight.