It's a little worrisome to me that pilot behavior makes necessary the word "Overderotation". Yeah, I get that it can happen, but pilots must remember to fly the plane to the wheel chocks. The fact that the mains are on does not mean that you're done flying, you don't just drop the nose onto the runway, you finish the landing by continuing to fly the plane...
And before someone questions why there's enough elevator effectiveness to enable a pitchdown of that rapid severity, remember that elevator effectiveness and travel limits are designed to enable stall recovery, not to protect from overderotation!