Originally Posted by
BristolTraveller
BRU could do the same by landing ex-UK flights into the Departures area of B (let people walk *up* the ramp to the gate area). If you need to go to the A pier, just go through passports.
But you'd create an extra "flow" of people, leaving the secure B area, with the infrastructure that goes with it. The way they do things now (Schengen = safe, the rest is not) they do not have to worry about it. Not great if you arrive from the UK, but easier to organise.
BRU has other rarities, seemingly because they are easier to organise: at customs, there is no "EU" channel (arrivals from EU countries). Everybody goes through the main green/red exits. (In the capital of the EU, of all places, you'd expect them to follow the EU guidelines...)