Jack actually read the review.
Though I still feel the "blame the mainstream" game is zero-sum all the way. A game for losers (us'ns).
Orr points toward self-effacing precision (in Bishop) as opposed to personality (as in Lowell, Berryman), and I think he means it's that quality which she has instilled, in her self-effacing way, in the good poetry of later generations. This has nothing to do with who or who doesn't get into the New Yorker (& that's one of the more boring topics in our wee world of posies & poseurs).