I just read something interesting regarding audio blind testing and it might be of interest to some here:
"The right brain/left brain theory applies here. You use one side of your brain for objective logical kinds of processing, and the other for subjective and emotional. When you are enjoying music, the subjective half is in play, and its process does not relate to the specs very well.
The same phenomenon explains why A/B comparisons, no matter how well staged, do not resolve what audiophiles claim to hear. When you are sitting there trying to hear the differences between products, the objective side of your brain begins working and your subjective responses get locked out by the pressure to make an objective decision."
However, there are limits to how much protocols can be changed. Including sighted listening is flawed for a lot of reasons. Every protocol and methodological framework has flaws. Nothing is perfect. If you simply play on the fact that nothing is perfect, you're simply attacking the results of blind tests because they don't suit your opinion. Nobody can ever demonstrate a test is perfect.
It's basically then just a form of nihilism. Science doesn't move forward from that and we have to remember it was the scientific method that brought us electronics in the first place. We can't just continuously reject it because we don't like what it tells us no matter how much test protocols try to address our concerns.
I think it goes back to what royalcrown said in another thread. If you find blind testing flawed, then should reject positive results as well. You cannot reject blind testing when it has a negative results and applaud a positive result. That's just cherry picking what you want.
So there are limits to what you've said.