1) For years PH used to do the stuff that should totally, unequivocally never be allowed. Then they did a 180, some damage control and a spring cleaning. You can argue that what PH does now should be allowed, but then one of its victims lawyers up and brings up something from dark past in which PH is totally implicated. Now what?

2) Visa, like any other business, must be allowed to use own judgement when deciding whom it's dealing with. They are no saint, though, because they probably noticed that they were dealing with PH (given its size) long enough ago and ignored what was going on there.