"You Mopar guys" The Mark Worman effect?

I'd say he's right. Most Mopar guys do go for the stock look. Or at least the old ones do. The younger crowd wants comfort and ease, and have no idea what the old cars were like when they weren't old cars. So they make what they want out of them. Mopars are rarer than Ford or GM, a lot more rare, so there was not a big push for making them unique - they were already unique.