Imagine you working with someone in some business, you trust your money to him. And one day he says: "Hey, I will not give your money back to you. I don't know you good enough! I need more information about you, your family, your biography... Do you have a car? Maybe problems with a law? Do you drink alcohol (I don't trust alcoholics)? I need your fingerprints too... Can you dance - I'd like to give money only to a good dancer first"...
I'll play the devil's advocate here.
Even though on a human level I agree with your logic.
1. BitCoin isn't money, not for US company. Neither other tokens.
2. Even if BitCoins were considered as money, they would still require full compliance with KYC/AML. Have you ever been to bank? They always ask same questions. Dealing with money was insanely complicated for ages. Dealing with BTC suppose to be easier, but only until point of "exit" where you have to go back dealing with banks once again.
It would really helped if Bittrex was more transparent on their banking relations and the actual requirements they follow, but I think they won't, simply because all those requirements not written yet so they follow vague recommendations to avoid any possible trouble. That results in ugly collateral damage as we see.