compton3bravo
Easyjet were in negotiations first with Brussels National BRU (recently officially renamed to "
Brussels Airport" simply). Those negotiations fell through.
Then (somewhat surprisingly) Easyjet engaged in serious negotiations with Charleroi Brussels South CRL. They seemed to be going somewhere, or maybe it was just a tactic, but eitherway at the last minute Easyjet nonetheless struck a deal with BRU
Your assertion that "no loc cost operator from the UK flies to Brussels National at this time" is essentially true. However BMI often offer fares of 1 EUR to London Heathrow LHR!!! And fairly competitve fares to East Midlands, Leeds and Edinburgh if you book early enough....