I think there would be concern if he is going to link him to a name he might not necessarily go by it could be linked to something defamatory (remember, we have absolutely zero evidence of IB’s name or background). I suspect that the question was not an issue.
I am now in no doubt of his name however, I really do not care what he is called.
As Burringham Iron mentioned, I was hoping by putting the name, it would be a prompt for him to reveal the context as to why he has such an interest in David Hilton.