People are buying it, unable to play because of PlayStation account requirement (the PlayStation servers are having issues and not letting people log in or create an account), and then leaving an angry review and refunding it.
I read those conversations. I wouldn't call this review bombing. This is people buying it and being upset with the product, then leaving a review and returning it.
I doubt the majority of those incidents are people who bought it without knowing about the controversy first. Thats why they can be grouped and labeled as something other than standard reviews.