It won't swing back cause it's fucking hard to get a dominant 7 footer lol. Even back when everyone always wanted it. It's not like they are just everywhere. It's much easier to be avg NBA height and become a great shooter. (Not saying it's easy. Just easier than growing into a 7 foot agile man with decent health and skills). It's just that teams who do have that kind of player will be very hard to match for a league that is mostly built to spread it out, light up threes, and play perimeter defense. Keep in mind Embiid can also shoot 3s. Something dominant 7 footers of the 80s, 90s, and 00s didnt do. He's just actually transcendent. If he could play 70+ games every year people would notice it more.