Why wasn't Shuster ejected for the killdrop hit on Burfict and immediate taunt?

[Jhowdy54]

Officials made a huge error as well on the 2 calls. one was a live ball foul and one was a dead ball foul. Both penalties should have been enforced. Same deal as the 2015 playoff game. Steelers ended up getting 30 yards in penalties for the Burfict hit on Brown and then an additional 15 yards for the dead ball after the play. Should be been 2nd and 31 and not 2nd and 16.