Re: honorary dan ranking
IMHO, if your instructor has earned the right to give rank, than they can give it for whatever criteria they feel is appropriate. You can do the same when you get there. Not everyone will agree with you either.
Beware of jealousy, it says more about you than it does about the person you are jealous of.
Worry more about the "honor" in your own practice than the "honorary" in some one else's rank.