Mostly, I'm impressed that the conservatives in the church are as willing to take the gloves off as they clearly are. I honestly expected, at best, the most passive aggressive sniping on all sides, and I get the impression the more liberal bishops expected much the same. Along the lines of 'homilies where the people they dislike are generally referred to but only in a roundabout way for which there is plausible deniability'.
But no, Kasper in particular was singled out in a 'that guy is not to be trusted' way. Maybe Burke getting his supposed disciplinary transfer made him decide, well, there's nothing much more they can do to him - why play nice?