Could someone from dev team look into it and fix frost dk ninja pulling by frontals?
As it is even without it - there is very little reason to take frost dk into m+ group - at best they will do decent dmg while bringin nothing more to group (yeah CR but lots of classes have it), now on top of being fairly useless - new tier with frostwyrm procs on pillar - it huge - probably biggest frontal in game, pulls through walls and other env obstacles in the way . Anytime there is a frost DK in group you can expect at least some ninja pulls and more often than not it will cause issues.
It much safes to take any other spec really - just stay away from frost in m+ if you wanna time it with no suprises .