Pretentious much? This decision is purely based on the behaviour of Millwall fans. Were such a decision to be made and we were at home then it would be based on them smashing up toilets on previous visits and general bad behaviour in big games. The Palace decision, whilst primarily based on their hooded firework toting morons, is also partly because of the behaviour of our fans in previous encounters. Were this to be the case in an FA Cup Quarter final then I would hope the authorities would treat it fairly and I would accept a decision to reduce our allocation accordingly. No-one wants their allocation reduced but if it is based on the behaviour of just our fans, as is the case with the Millwall game, then I would accept it.
If you apply some logic to it, if the safety group have decided that Norwich game is Cat A and Brighton Cat B, they must think there is more potential for trouble for our game. I can't see that the decision is purely based on the behaviour of the Millwall fans, as the fans would be the same for the Norwich and Brighton games.