He’s a poor liar!
More sophisticated rabbis are better at concealing what they know to be true on the subject of ascending Har Habayis (Kareis! Killing Jews! Not a Mitzvah! and so on).
See responsa “Rishon Letzion” Part 1, p. 51. Yes, he forbids, of course (what else could he say, in his position, and with his father?!) but the cards in his hands aren’t a blur, if you know what I mean.
I have no more time to write, but there are several other examples of this politician (oops, I meant rabbi’s) surprising unartfulness.