Did you read the post? This is not about McNichol's, its about taking Henry out in critical 3rd or 4th and short situations. You can play McNichols on 3rd and long, which is where he did all his damage.
This is about an offensive coaching staff that is making objectively bad decisions that telegraph what the offense is doing simply through personnel and formation.
In the Packers/Broncos Superbowl, Mike Shanahan - a coach that's not stupid, once told an injured Terrell Davis (who was literally blind from a concussion) to walk out there just because his presence on the field made the defense think it was a run.
Here's a video of coaching by someone who is not mentally challenged:
Road To The Hall: Davis' Super Bowl migraine - YouTube