Yeah, something the article doesn't mention is that videogames have to overcompensate with things that provide the illusion of depth because the viewer is missing their usual stereoscopic vision. The game is already at a disadvantage, and players need to be able to read scenes quickly to play the game effectively.
> videogames have to overcompensate
And yet somehow we can understand videos and photos just fine.
Videogames have to overcompensate when they're missing lots of other important cues, but the closer they get to realism the less they have to overcompensate.
I'd also wonder about the average display equipment in use, the environment they're viewing in, and versus what our eyes are capable of.