Rubin certainly seems more a token conservative that some media outlets employ to show "balance".
I'm no Trump lover for those who have noticed. I don't know if it qualifies as a "horrendous error" though. To me a horrendous error when you're POTUS is something that hurts the people of the United States, or I suppose in another country in some way. And when I say hurt I mean puts them at legitimate risk in some way.
That said it's just another baffling aspect of Trump. I don't know if I can adequately articulate it and I certainly can't psychologically diagnosis him. But this is up there with what Justin Amash called bizarre when referring to Trump saying he great appreciated Comey telling him on three occasions he was not under investigation.
This guy, like Obama or like any narcissist I suppose is so obsessed in an unhealthy way of what his public perception is and seems terrified in some ways of making a huge mistake that he'll be held accountable for.
Of course he never said the word Israel. From what we can gather, he didn't know where the intelligence came from to begin with.