The problem with "The Music Hall of Fame" or "Pop Music Hall of Fame" is Rock has always been blue collar. The thing was put in a blue collar town for a reason. On the other hand, Pop music has always been much more white collar.
It may seem silly, but "rock and roll" is a lot more than just a genre of music. It's a lifestyle. A spirit (of the radio?
) The hall was original put up as a celebration of all that.