This is all just to save face with the USADA situation. If they announce it too soon it'll look sketchy and show some behind the scenes string pulling. Instead, the UFC is putting out this front that they're scrambling to find a main, even considering starting a new division or creating another interim belt. In a few days or so dana is gonna be like "look, we scrambled to find a main, but this is what we've got. Jones stepped up on short notice and took the fight". makes it look like a last resort and makes jon look good.