Is it Blizzard's fault that people are downvoting and posting abusive comments on the Diablo Immortal gameplay trailer? Or is that campaign of harassment perhap

Is it Blizzard's fault that people are downvoting and posting abusive comments on the Diablo Immortal gameplay trailer? Or is that campaign of harassment perhaps the fault of the players who felt betrayed that a much loved hack & slash game was being introduced to a new market?