I'd say it was TPTB. They have an idea every season who they want to go far and if anyone becomes a threat to that plan its game over for that person. Audra could've been a real contender with the right song choices but they weren't gonna let that happen IMO.
TV1: Javier Colon| TV2: Juliet Simms| TV3: Cassadee Pope| TV4: Danielle Bradbery| TV5: Jacquie Lee| TV6: Christina Grimmie| TV7: Reagan James| TV8: Meghan Linsey| TV9: Emily Ann Roberts| TV10: Alisan Porter| TV11: Wé McDonald| TV12: Lauren Duski| TV13: Chloe Kohanski
AI1: Kelly Clarkson| AI2: Kim Caldwell| AI3: Diana DeGarmo| AI4: Carrie Underwood| AI5: Chris Daughtry| AI6: Jordin Sparks| AI7: David Cook| AI8: Allison Iraheta| AI9: Siobhan Magnus| AI10: Haley Reinhart| AI11: Jessica Sanchez| AI12: Angie Miller| AI13: Jena Irene| AI14: Jax| AI15: Sonika Vaid|