As someone who's played and beat every Fallout game (excluding FO:BOS and FO: Tactics) I have to say that Fallout 4 is easily my favorite in the entire franchise. I enjoyed it more, in every aspect, than Fallout 1 or 2 and those two were tied for my favorite prior to Fallout 4 coming out.
Now what does this mean for you? Nothing. But I'm sure I'm not the only one around here that doesn't appreciate you speaking for the entirety of the community. The game is plenty dark depending on where you are and where you look and who you talk to, but it's also very hopeful and uplifting also depending on those things. I feel like that sort of mix is , and how well it's mixed, is what makes something good. Not how dark and gritty it is.