This is just my two cents on the matter. It is hardly official, and likely not even that close to the factual core of things, since I have not invested the energy or time to be that rigorous about this. --More, I have invested time and energy in simply *AVOIDING* this issue, due to its corrosiveness.
That said-- Individuals of this mindset (which is what I will now use, to avoid using a trigger warning. These people are of a shared mindset, which I will now call "the mindset", or "this mindset.") appear to have difficulty divorcing emotion from reason, or from divorcing belief from fact. Reelya hits on this somewhat when mentioning that the mindset has analogs with religious thinking.
As a result of this, the people who adhere to this mindset honestly do in fact believe that they are being slighted, and that the dismissals of their complaints are a grand conspiracy to keep them down. This is contrary to the factual situation, where the things they are complaining about are innocuous, and the dismissals are the best practice for genuine fairness and integrity.
In this respect, it is very similar to the extreme religious right, where they honestly believe that the trend to remove religious iconography from courthouses is a grand satanic conspiracy against christians and christianity, when the actual factual situation is that the removals are there to reinforce the separation of religious faith based matters and decision making from secular government, to protect BOTH.
In this respect, the people of this mindset are to the liberal left, what religious fundies are to the conservative right. If the left is not careful, they will end up with the same problem that the conservative right has-- that the group message and identity has been compromised by their respective group.
It is my opinion that reinforcing the need for genuine critical thinking, dispassionate examination of evidence, and exercise in recusal when one is too close to an issue is the solution to this problem.
Denial that there even *IS* a problem with purely emotional thinking, by both sides, is what lands us squarely in this mess. When you enable and empower the mindset with direct application of power (such as these tribunals), it quickly becomes a witch hunt. Irony intended.