Had to disagree. Recall that in the mid-1960's, when the cars debuting in 1970 were first being considered, the A-body was an economy car, not explicitly a sports car and especially not a muscle car. Midsize cars were where the performance game was and the A-bodies were kind of....not considered a big seller.
That's why the '70 Duster was so revolutionary. It sold in HUGE numbers, and very few people saw that coming.
