Yes, I know. "I like what I like; I don't need reviewers to tell me" is the common refrain.
And yet, a game that scores better invariably has a better chance of selling more copies. It's just the way of the industry, whether you rail against it or not.
The question, though, involves the types of gamers and fans in question. For example, JRPG fanatics often purchase JRPGs that earn mediocre scores from critics. The fans will tell you the reviewers are simply being biased and stupid, and they don't understand the fanbase in question. Any IP with a niche following has experienced this in some capacity, it seems.
Now, the Dark Souls games really only appeal to the core gamers out there. The casuals have no interest, just as they have no interest in Bloodborne . Therefore, perhaps these core action/RPG lovers will be buying From Software's latest, regardless of what the scores are. Then again, maybe PlayStation 4 owners are little gun-shy about exclusives that fall shy of expectations… Don't forget that Demon's Souls and both Dark Souls games had the benefit of widespread critical acclaim. If Bloodborne doesn't get that, I wonder if sales will be disappointing.