I don't know if "sane-washing" is the right term. It seems more like they are working as campaign staff to spin a message out of his ramblings.
If they were interested in journalism, they'd say that Trump's plan to lower food prices is to love rainbows and receive love from sunshine. You know, just stating the facts. The term "sane-washing" to me infers that the entity doing the sane-washing is a journalist and not a campaign staffer.
That definition goes with "spinning" the story. However this goes beyond just spinning and it's much more than just whitewashing over a couple imperfections. This is completely rewriting his words and campaigning for the man.
This is taking spinning a story to a new level and "sane-washing" just doesn't convey the weight of their actions. With these actions, the New York Times is more like Trump's A-team campaign management. It's almost like a reverse Dunning-Kruger Effect, where they attempt to make him look like he has ideas and substance when there isn't any.