I din’t misunderstand what you had written.
the point is, motion blur happening when you pan the camera - the camera being the character’s head first person. Is just bad.
Not only that, in people like me it contributes to motion sickness to the point that some games (fallout 4 to name one) are unplayable.
this is precisily because motion blur in game does not work like IRL.
Let’s not even go to VR and motion blur, or I’ll barf right here 
And as far as my “condition” its actually almost exclusive to gaming. Boating gets me sick less than fallout 4 tbh.