They named her to the Oly team, they gave her a spot in the team event (which gave her an opportunity to get out in the public eye in the early days of the Games), and they promoted her on their social media. I'm guessing they weren't thrilled with her comments about DWTS and her dissing her teammates, which is likely why she apologized/walked back on those a few days later.
Please, that girl gave them the performance, a history making moment and tons of NBC publicity leading into the ladies event. They weren't going to get this publicity and excitement out of Bradie.