I think that might be off on the timing. I think the "shithole" meeting is precisely when Trump refused the deal, not in the aftermath. Even if he didn't use the terminology described, it seems he was expressing non acceptance of the deal right then. Any observation that the media is really good at chasing red herrings is definitely true of this.
"If fighting is sure to result in victory, then you must fight! Sun Tzu said that, and I'd say he knows a little bit more about fighting than you do, pal, because he invented it, and then he perfected it so that no living man could best him in the ring of honor. Then, he used his fight money to buy two of every animal on earth, and then he herded them onto a boat, and then he beat the crap out of every single one. And from that day forward any time a bunch of animals are together in one place it's called a zoo! (Beat) Unless it's a farm!"