Yes, James, you would at lest think that the two originating from ZWO would be the same!
The Player One plot is not absolute QE but relative QE which is an equal energy reponse curve. That can’t really be compared so easily with the absolute plots as it tends to elevate the red relative to the blue. It factors in the photon energy and also normalises to the highest value.
I recently came across a link which explained how you convert between absolute and relative curves but can’t find it right now.
Regards
Martin