The heel makes the babyface though. Austin def caught on after the “Austin 3:16” promo, but it was the Mr. McMahon character that really made it catch fire (as well as the Rock). Hogan was popular, but it was Piper, and Andre that really sold it. Here’s what I mean about it making more sense from a booking perspective.
In the 80s, Hogan was WWF champ. And they had to push bigger, badder heels for him to conquer. Piper, Bundy. The Andre match was the pinnacle (I saw WM3 on closed circuit TV as a kid, was awesome). You can’t get any bigger and badder a heel to conquer than Andre the Giant, and Hulkamania started its downward spiral after that. What do you do with these heels once they’ve been cleanly beaten that way?
Now, with a heel champ like Flair, he wins by cheating and cutting corners. It’s easy to build babyface to chase him, and they’re not damaged much when they lose, because Flair typically cheats. When wrestlers work a match, why is it the heel that calls the match? Because it’s the heel that makes the babyface. It’s the heel’s job to get them over.