Proof That The New York Times Isn’t Feeling the Bern
The Broken Ravioli

Hanlon’s razor: “never assume malice when stupidity will suffice.”

You say the revisions appeared “once many people, including Sanders himself, had already shared the article widely on social media and other sites.” That implies to me that the NYT may have been reacting to people interpreting this as a pro-Bernie endorsement. The NYT, not intending to officially endorse Bernie, may have felt a need to “balance” the piece retroactively.