Her undeniable talent as a wordsmith has taken her a long way. There's no crime in that. Robinson's complaint is a case of sour grapes.
Noonan is far too decent a person to take credit for Reagan's speechifying genius, and I believe she's given him full credit for his success in that area. In any case, I have yet to see a direct quote from her which says anything like "I put the words in the president's mouth."
I happen to know the Noonan family a bit. Peggy Noonan's sister got married out of my parent's home on Long Island. My sister and Peggy Noonan's sister are friends. They are salt of the earth people, though not entirely without the troubles that find their way into any family. Noonan is a sweet, highly intelligent lady who loves Ronald Reagan. It is silly to believe that she employs a "me me me" approach to writing, or that there's anything "gonzo" about her style. In fact I can't think of a more inept comparison than one between Peggy Noonan and Hunter S. Thompson.
She rose in the world of journalism because her readership and her admirers grew. It's as simple as that.
It's silly - until you read what she writes.