True, but horse shoes and hand grenades. In folk, it is exceedingly difficult score from the position Sakamoto was in that first time. Even if you have both knees in the hole and the ankle shelved, your near arm is trapped. You can't get that arm around the near leg. Instead, you have try to lock out the shelved ankle and attempt to turn the dude's knee-up vertical . . . all while trying to posture up. It's just too much weight going forward. Worse still is if the the guy in Ayala's position gets behind both arms and locks their hands. The guy will just slowly stretch you out and slip the trapped leg.
Again, I've seen some Askren folks work Peterson from there without much success.
Obviously, free is another matter. Jabrayil Hasanov (AZE) used to torch folks from here.