#1 Late punishment for the Becky Lynch incident
This one is pure speculation, so take it as you will. We were all quite outraged when Becky Lynch was pulled from Survivor Series because her scheduled match against Ronda Rousey was by far the most exciting match on that card.
With one punch, Nia Jax had taken away a dream match for fans. However, in hindsight, it worked out better for Becky Lynch. The incident made her the hottest star in the company. Despite Nia Jax being pushed initally, it seems like she's got her receipt. She was attacked by Becky Lynch backstage at TLC and she was eliminated by her at the Royal Rumble.
Despite having an elimination. Nia Jax took quite a beating, particularly at the hands of Rey Mysterio and Randy Orton. It's possible that this was a punishment of sorts for her, but even in doing so, she joined an elite list.