The combination washer below and dryer on top is so common that you can buy a frame which fixes the dryer on top of the washing machine. The weight is not an issue.
It would make most sports incredibly boring to watch, as well as frustrating for many athletes. Boring sport means less money, which would also mean less teams overall.
What is it
Mostly fairytale magic.
what can be legit gleaned from it in an empirical or useful sense?
Don’t bother.
Are you high?