Thanks everyone for replying!
Christopher, I don't think the problem is of that nature. But good to know for future reference
Carsten, I do believe him being only Sandan has a lot to do with the fact that he sort of belongs to two organizations. I won't get into explaining why and how it happened, its rather long and I don't even know the whole story. But he sure doesn't lack dedication to Aikido. I too was surprised to find out that he holds the rank of Sandan when I first switched dojos.
Baffled 2 seems to know a lot.. But I suppose playing favorites fits rather nice for what is happening.
As far as him having an exemplary demonstration' type of test - you can bet your paycheck on it
But I hope I somehow misunderstood and he wouldn't have to go through a formal test. Not that there is anything wrong with that, I just believe he deserves more.