True, I see what you mean. But the other complaint I have about bone claws is that there are literally no creatures in our world with bone claws. They don't exist in nature. I get that comics shouldn't necessarily adhere to the laws of the real world (because it'd get real boring real quick) but bone claws? I'm sorry, it just seems like such a silly idea.
Well, not just anyone could get them, they'd die in the process. Anyone with a healing factor, sure, they totally could. To that point, wasn't there some version of the Hulk with Wolvie claws a few years ago?