Yep yep yep!
Seeing as this clip can be done anywhere there's a corner and an enemy, as opposed to previous wall clips that used screen transitions (or in one case a statue), I'd say that's enough to let it qualify as separate; there's even a recent precedent in Ecco, where a glitch with the camera was discovered that lets you get into walls practically anywhere you want to, letting you skip straight to the end of most levels.
One other possible use I just thought of would be skipping the woman statue by clipping into the part of the moon pyramid you need to sleep in, unless the game does an extra check for it before giving you the ocarina?
One other possible use I just thought of would be skipping the woman statue by clipping into the part of the moon pyramid you need to sleep in, unless the game does an extra check for it before giving you the ocarina?