They are absolutely, 100%, without a shadow of a doubt, making incorrect decisions on purpose. They implicitly admit to it with their cowardly "clear and obvious" and "re-refereeing" rhetoric. They act like they aren't the ones who devised those ridiculous notions in the first place!
As for corruption, of course they are corrupt. They have shown a willingness to act dishonestly for personal gain. Brown paper bags are for film noir, not real life. You can't arbitrarily make up the definition of corruption.
As I've said before, the "they're only human" argument is bunk. Humans are not so pathetic as all that. Humans are fully capable of managing their biases. If these ones aren't, they're unfit for the work.