Well, probably because if they use that metric, a ton of other companies, many US based (though unsure if Brazil cares about that part) would be on the list too. There was an older Last Week Tonight episode about how much cheap clothes and luxury clothes ended up having subcontractors that used slaves.

Owners would claim they had no idea, would fire the subcontractor, then sometimes the issue would repeat. I recall one claim was that their subcontractors would farm out work to even more subcontractors as the reason why, but that still feels like passing the buck.