Well they fail.
I think this is a bit of a reach though.
People need to let this make Danny Rand Asian thing go.
Nope. Well not really.
The end of the last IF solo (Iron Fist: The Living Weapon) it ended with a little girl from K'un L'un becoming the new IF. Of course that's being ignored in the comics until the writer starts his sequel which follows Danny training her.
Other than that, I recall a flashback to like the 15th century IF who was an Asian woman.
Neither are really prominent though.
They didn't rush production (the writing, shoot lications, etc). They just didn't give a **** if he had his martial arts training completed to look believable on screen.