Mr. Holding introduces Galileo's "insulting" demeanor with "unfortunately". From "Blowing the Doors Off", p. 375
This is sort of like Hitler telling a friend "Unfortunately, that Nazi guard doesn't know how to treat Jews politely."
But if the reader takes Holding's point to heart, they will conclude that Galileo would have been smarter to learn how to make his case politely.
Which means they would eventually conclude that James Patrick Holding could similarly have avoided his own legal troubles (multiple lawsuits against him for libel) if he had learned to make his case more politely.
It would thus appear that Holding is willing to give to others the false appearance that he doesn't think it is ever morally justified to use insulting language, including situations where biblical truth is being suppressed or misrepresented.
