Guy makes cogent points. I've seen similar information presented years ago by Massed Ayoob, to the same effect.
Of course, it's total bullsh*t that any of this should matter, but it does.
Reminds me of a conversation I had on INGO more than 10 years ago on NFA trusts (when they were the rage) concerning not naming your trust something flippant or "funny", as it would be engraved on the firearm, and could have the effect covered in this video, if used in a self defense shooting.
While the optics covers that say "Front Toward Enemy" or "Smile and Wait for Flash" make us chuckle, they're best left in the safe.
Better yet, leave 'em in the catalog.