A lot of people were saying Fallout New Vegas svcked simply because Bethesda didn't make it. So it goes both ways.
From my own experience with people I interact with, many of them Bethesda fans.. The hype for Fallout 4 has died off completely. I don't know anyone who is still playing it. Again the people I have been talking to tell me they are fans of Bethesda's games. The Elder Scrolls games and Fallout 3. They talked me into getting Fallout 4 on day one. Something I wasn't planning on doing. They all played New Vegas and they enjoyed it and were hoping Fallout 4 was going to take more from it then it did.
I think it is better than Fallout 3 in many aspects. Bethesda put in multiple paths for the main quest and they put in a lot of little things people were suggesting on these forums and little things can go along way. But over all Fallout 4 isn't giving me what other Fallouts games give and that is the drive to keep playing. Settlement building was very interesting at first but I don't have any interest playing just to build things. I don't feel like rebuilding everything when I start a new game. I also don't see any reason to start a new game. With the other Fallouts my reason for starting a new game is to see how quests turn out differently if I take different options with different characters.
But yeah it isn't helpful when people just say "it svcks" but everyone does it. But that being said I have seen people explain their views and get "well you just hate Bethesda" as a response.