From those stills, it looks apparent to me unless he/they were transported into an old "asteroids video game"...the safety was already on and "cheating" to Watkins side of the field, he COULDN'T have gone over to "help/double" on Kupp even had he wanted to....unless he hit the thruster repeatedly or the hyperspace button.
Not sure what any stills or film will show as far as a safety "helping on Watkins because he's WATKINS" that they wouldn't be doing the exact same thing if the name on the back of the jersey was "Cooks".
FTR...I don't see any reason/evidence that Cooks can't run/hit on the quick slants on the goaline as is seemingly thrown out as a foregone conclusion...now the corner fade or jump balls...yea I can see him not winning many of those.
Like you guys...not sure what Benoit was "getting at" TBH.