re: Is there a reason why hockey uniforms haven't become more ergonomically pleasing?

Football uniforms never needed to change.
Hockey uniforms definitely don't need to change.
Quit letting Nike\Reebok\Adidas frick up sports for their own selfish business needs.

Women, or as you call them... "Black Guys", and their incessant need to peacock around are to blame for modern sports uniforms being in this ever changing state. Every few months there's a new "reveal" or a new color "drops", it's fricking embarrassing. If you need your sports uniforms to be worthy of Cosmo or Vogue, stick to pro wrasslin', that is the acceptable "dress-up and make-up" sports league.(and Minor League baseball, GO! Round Rock Chupacabras!...but no one else!)

Those Michigan unis are flawless, but why does #1 not also have arm stripes? Are arm stripes only for the big guys? Interesting.

Also, I don't think anything can be "ergonomically pleasing" to the eye, try "Aesthetically pleasing"? You say the word ergonomically and I start thinking about mouse pads with wrist supports and different styles of office chairs.