If you were not aware, the current RAW Tag-Team Champions, The Hardy Boyz, earned the right to choose the stipulation for their title defense at Extreme Rules. After Matt Hardy defeated Sheamus on RAW a week ago, The Hardyz chose to defend their championships inside of a Steel Cage.
Dave Meltzer stated on the latest installment of the Wrestling Observer Radio that the reason WWE went with that decision is due to the number of ladder matches that has/will take place. NXT Takeover: Chicago saw a ladder match between #DIY & The Authors Of Pain plus, the upcoming Money In The Bank PPV is coming up. Meltzer eluded to WWE simply trying to switch things up.