Bottom line - the inspector needs recurrent training.
Sorry, I don't but the "yes, it's perfectly legal, and, yes, the FAA officially says it's the right way to do it, but some guy into abusing power might not like it" as a basis for not doing something correctly.
What if he didn't happen to like that you logged solo time when you were on your solo cross countries?
Its amazing how many people here seem to be OK with the FAA doing whatever they want when it comes to enforcing the regulations. It's especially surprising when you consider how rabid some people here can be towards airline management even coming close to abusing their powers. It's so weird how I see posters here always seem to be so willing to keel over for the FAA.
The rules are not only there for the FAA to use against us. They are also there to protect us against the FAA acting arbitrarily. If it's not illegal per the FARs, it's legal. Period. There's absolutly no excuse for letting the FAA bust you over something that is not against the rules.