First off, I can say with full certainty that Terence hasn't become the respected guru that he is by throwing around derogatory comments. It wasn't an insult, no one was offended (except maybe you), and regardless of that, beggars can't be choosers. I don't see why someone like Terence should have to carefully "soften" his words so that other people don't feel dumb around him when he most likely is smarter than most of us anyway. And certainly more knowledgeable in this area.
Besides, "Then you didn't try hard enough" is a clean statement of truth, arguably more friendly than just "you're wrong" since it corrects the basis of your conclusion instead of attacking your capacity for logical reasoning. The Shinra truck in Corel Prison is very much accessible and not deleted from the final game. He recognizes that the poster is in error by suggesting that conclusion, exactly because he didn't play the game enough to discover the opposite, and tells him so. If you're going to go around being offended by people correcting you when you're wrong, then a discussion forum is hardly the right place to be, yes?
Enough off-topic discussion, get on with it.