Yeah the half vulcan thing seemed odd, but it says above no humans should visit, so pointing out he is half human seems acceptable.
Actually, the document doesn't point out that he's half human; it just points out that he's half Vulcan. :lol
I always thought it was odd when, in "The Enemy Within," Spock tells McCoy, "Being split into two halves is no theory with me, doctor. I have a human half, you see, as well as an alien half...."
In
ST:TOS, it's made clear that Spock generally prefers to think of himself as Vulcan rather than human...
Kirk: Have I ever mentioned you play a very irritating game of chess, Mr Spock?
Spock: Irritating? Ah yes... one of your Earth emotions.
Where No Man has Gone Before
Bailey: I happen to have a human thing called an adrenaline.
Spock: That sounds most inconvenient. Have you considered having it removed?
The Corbomite Manoeuver
Kirk: At times you seem quite human.
Spock: Captain, I don't think that insults are within your prerogative as my commanding officer.
City on the Edge of Forever
Kirk: Well, there it is... war. We didn't want it, but we've got it.
Spock: It is curious how often you humans manage to obtain that which you do not want.
Errand of Mercy
... to quote just a few instances.
If Spock considers himself to be half "alien," it seems as if that half would be the human half. But maybe he was just trying to make things simpler for Bones, who is, after all, just a simple country doctor.
I've also always thought it was odd when, in "Court Martial," Spock, on the witness stand and under oath, is asked, "You know a great deal about computers, don't you?" and he replies, "I know all about them." Apart from it being a peculiar thing for the obsessively precise half-Vulcan science officer to say, the computer doesn't object to this response as non-factual? It concedes that Spock knows
everything there is to know about computers? :eek
Don't get me started! :lol
Sorry for going so far off-topic!