I like that in the show proper, he wasn't even subscribed to a specific magical/religious practice, he was just throwing shit at the wall until someone picked up the phone.
This critique dont make sense to me cause it doesn't even use voodoo symbols at all. It uses unique symbols created for the show, it has its own magic system. There isn't even voodoo in the show beyond loose inspiration so I honestly don't get what there is to be angry about