Games have things like the first shot from enemies will always missing to give you a chance to react, or your last sliver of health counting for more. All sorts of hidden psychological tricks to make games playable or even bearable. Even Dark Souls does this.This is a False Equivalence, though. Video games cheating is not the same as a DM fudging in limited circumstances. First, there is no real intelligence fudging in a video game. Second, it's usually some sort of glitch, and nobody wants to lose to a glitch. Third, video games have win/lose situations, so people playing them are going into video games with a different mindset than tabletop RPGs.
I'm sure there are more reasons that they are not the same and shouldn't be equated, but those three are more than enough.