Well, I knew exactly what to expect and I tried to warn everyone that it was really different. But the fan-base refused to believe it. People hear what they want to hear not what they hear. As a result fans are often disappointed because their dreams are not fulfilled. This is simply human behavior. We see what we expect, not what is there. Todd Howard actually said it was not a single player RPG and would be experimental MP. Look back at my early posts on Fallout 76 on these forums. He actually warned everyone.
It was really the fans that hyped it as a Fallout sequel.