If low AML risk score is really that important for users then I could offer this option too, without compromising the privacy.
You can't do this, and I suggest you not attempt to, because AML score is purely subjective and is pretty much against Bitcoin as currency. Buying it means you approve it, which is where the trap lies to.
I completely agree with you, my concern is that even after some time users won't understand the huge advantages that Whirlwind offers from a privacy perspective since the service works differently than what they're used to. I hope it won't be the case, but if it happens then I'll be obliged to look for ways to offer what they want while not making compromises on privacy. It'd suck, sure, but it's a business at the end of the day so offering the best privacy means nothing if noone uses it.