There's no hate. I will tell you though why I believe that many people concentrate on speaking about the graphics of the game, and it gathers so much attention.
Think of what we currently know about the game: we only know what the trailer has shown to us.
And what is the info the trailer communicates to us ? Well, it doesn't tell us anything about the gameplay.
Neither it gives something about the story plot of the game, aside from the fact that the player is from Vault 111,
one of the many vaults. But we don't get to know anything about Vault 111, all we know is that its just another of the many Vaults.
So what is there left that could be considered a 'new' piece of information that we get from the trailer ?
The graphics. The only thing that we know for the game now, is what its graphics look like, and that the player is from Vault 111 in Boston. That's all of it.
So, discussion about the game will either be pure speculation, or it will be based on info that we got from the only trailer there is, and the only info that
the trailer communicates is that the game takes place in Boston, that the player is probably someone from vault 111, what the aesthetics of visual and
audio design are, and what is the graphical fidelity of the game.
The audio info we get, is an old already known song, and the already known Fallout theme, nothing new here.
What we know about Vault 111 is only that its on Boston, and we can't really talk about anything else about it.
What is left to discuss is the graphics, so many people argue about the graphics. Some like them, some not.