I'm not going to pretend I've gone and looked at every instance because I haven't and have no inclination too. My memory suggests though that it's a pretty standard way of doing things when a team is kicked out and I'm struggling to recall a situation where that hasn't happened.
Re the 2 leg stuff they really should have done is postpone the second leg to give time to deal with it, that way they would have options on sporting sanctions for the first leg which didn't affect the second, giving us the opportunity to make it up in that game.
As the bias stuff I highly doubt that the mush who played a single game for them in the 90s was biased. I agree though that you'd think they'd want to avoid even the suggestion and Saints should have challenged it, if only to delay things.