When you become blind to how bad a game or other piece of media is, due to the advertising and hype built up around it. Causing you to defend a clearly bad piece of content from criticism for no reason.
Similar to tunnel-vision
People had really bad hype-vision for fallout 76 when it first came out, the games still crap but it’s getting better.
Focusing so much on advertising for a single piece of media (video game, movie, tv show, public event) that you become blinded to how bad the content actually is, and go out of your way to defend the content from criticism for no reason.
Comparable to Tunnel-vision
People have some serious hype-vision over fallout76, so many people defend it for no reason when it first came out it was total crap.