It's mostly because you don't 'count' as a member of the 92nd RGL wise. Nick asked me about it beforehand, that's why Coco wasn't allowed to be on the server either, it's not specifically targeted at you but generally speaking, when the referee is telling you to leave, you should oblige to it. If he was wrong, he will be told so and you will be presented a formal apology but it's not acceptable to come back time and time again after you have been told not to.
As for the first part, we'll discuss it with Shadey what's to do with these people (like you and Coco) who left their regiment during the RGL, joined another and simply wish to spectate the game of their new regiment.