TFA simply hasn't behaved the way an OW record setter should. Here, from BOM, are the last 10 OW record setters and their Week 2 declines. I put in $21M for Thursday and this is what I've got:
Not sure why my image isn't loading, but with a rough estimate of $21M for Thursday I get TFA to have a 33.7% Week 2 declines. Before that only JW had managed to fall under 50% with 49.5%. 33.7% for a OW record setter is ridiculous.