It wasn't that they failed to have any positive impact, they had an actual very negative impact, since he announced she was there to teach journalism which is just about the worse possible thing to say considering the circumstances. And also untrue, but he's a busy man and can't be expected to pay attention to a briefing before he opens his mouth and, despite holding the title 'foreign secretary' appeared to have no knowledge of foreign policy or geopolitics in the region. I mean, seriously, don't we already have Priti Patel for that.
And the mealy-mouthed motherfucker still can't cop to even the briefest wheedling apology.