There is certainly the view that he was marrying beneath his niveau -- King Ludwig of Bavaria and King Edward VII after all only had actresses as mistresses.
I won't dispute that the Grimaldis, like all royals (including the Windsors) have their bad eggs and wild children, but Grace Kelly had money when she married into the Grimaldi family, and she comported herself with dignity, and as far as I know she never had a bad word to say about America, to which she retained a fierce loyalty and love from everything we know. The same cannot be said for Queen Noor.
Once again, Noor has adopted the hatred of Jews and Israel which permeates the Arab/Muslim nations, but I suspect she was an anti-semite before her marriage. These attitudes don't just spring up from nowhere.
Mostly though she sounds DUMB. Her anti-semitism is basic stuff - "the Jews run this - the Jews run that - they have too much power" (which they have somehow weasled their into) blah blah blah. Now you add her complete denial of Arab culpability in the hostilities, and it adds up to a lightweight.
You can bet though, that if Dick Morris is writing about this, people are talking about it, even in "high society", wherein she travels. And the stench of anti-semitism sticks to the person expressing it, even among folks in that arena. :)
And considering she most likely lives in NY and Europe, while merely "doing her laundry in Jordan" one might say, she'll feel the heat. ;)