There's a difference between a snake choosing to go into the water of his own free will and being stuck in something to soak that he has no control over or ability to escape from. We never said 'Ball Pythons can't swim or go in the water', just that forcing them to soak/bath/whatever wasn't in their best interest and stresses them out. Just because you can take a bath or go into a swimming pool doesn't mean you enjoy it when someone else makes you and you have no control over the situation.