I am a native English speaker...as I assume you are as well.Although I'm no Mensa member...no William F Buckley...I'm inclined to believe that I have at least a fair command of spoken and written English.
And that command,however strong or weak it might be,tells me that that's exactly what he implied.
Of course your mileage may vary.
I guess that's progress because at the start of this thread he definitely said it, no question about it. I saw your other post on what the British commenters thought about it. That just reminds me of the man who lost his job in Washington DC because he complained about a niggardly budget increase. Just because people are outraged over something you said doesn't mean they had the slightest idea what you were talking about. You've read and heard what he said now (a response to a question about an attack in New York, btw, that had nothing to do with London) so feel free to interpret it whatever way you want.