Whether it's my Commonwealth colleagues assuming everyone understands cricket or Americans assuming everyone has been nursed with baseball, I am constantly amazed how they universally believe everybody understands them... when that's clearly not so:
I'd say that starting from the shores of the EU and going east all of continental Asia, until you hit the subcontinent, the vastest continental mass on Earth and the significant portion of the world's population on it remain blissfully ignorant of both.
The reach of Hollywood, Western cultural metaphores etc. an the other hand is way bigger than that of sports metaphores. If you are US based, just imagine I was going to use football metaphors on you.
You know the real type of football, where people don't steal the ball and carry it off the field in their arms but where it's actually played with feet.
I'm glad you learned something from it, but I'm afraid you left me and quite a few others baffled.
You seem to write well enough, but if you want to have an impactd, it helps to know your audience.