[MizunoJoe]

... once the left wrist uncocks to level then the roll of the number three accumulator adds significant clubhead speed for the swinger, that's why you have it in shots where you want additional power.

Not really, most of the power comes from the uncocking left wrist, while throwout is principally the delivery mechanism. It's primary power function is to sustain compression in the impact interval and maximize separation velocity. Also, you have throwout in all shots, not just those which require additional power.