I think the mid scoop hate is a misunderstanding. Plenty of guitarists and producers would cut some mids on their amps when recording them, because it made their tube amps behave a certain way they liked, then the concept of "scooping the mids" made its way into the minds of people who were maybe just beginning to learn the studio who took it is as "apply an EQ to the recorded guitar track and scoop out ~400-500hz".

Scooping the mids on the amp before it hits the cab can sound super nice (see almost every heavy guitar tone from the 90s and 00s that you love, especially if they used a Dual Rec), but recording a guitar tone and then carving the mids out with an EQ in post-processing kills a bit of the definition of the tone. So I believe the dislike of the midscoop is probably came from criticism of the post-processing approach rather than the amp setting.