My guess--I can't really claim to have more than that--is that if there is an ideological motivation behind this, it's that Pope Francis did this to try and intervene in the internal argument among US bishops over whether or not pro-choice politicians should receive communion.
It could also be that he simply doesn't like Burke for some reason.
I also noticed this article mentions criticism of Francis from the left for appointing my old bishop back in Ohio, Leonard Blair, to Archbishop of Hartford, Connecticut.
(The reason the left is angry has nothing to do with what he did as Bishop of Toledo but rather some random committee he was on)