There’s some thought you have to put into how to put him down so you end up in a dominant position. Specially since it was such an awkward position to begin with, while Stipe was all the way down DC’s back. You can see DC puts him down once Stipe attempted to adjust from there. Watch again.
Obviously this. He couldn't flip him forward due to the way Stipe was hanging. Couldn't dropping backwards as there was a risk Stipe could let go if he did and scramble up. Had to wait for Stipe to make a move, which he did.