People had really high expectations. COMPLETELY UNREALISTICALLY HIGH expectations.
When the game failed to live up to those COMPLETELY UNREALISTICALLY HIGH expectations, people got upset. In some cases, very upset. And the internet, for better or for worse, lets them voice that upset in broken English, without correct punctuation and use of paragraphs.
The game is good. Really good. One of the best games available, in fact, but there are a lot of people that thought it would be something different. That's not their fault. However, it's pretty f*cking dumb to label it 'broken' or 'a bad game' because they don't like it. Millions of other people believe the opposite.
So yes, people do think this game is bad. And for them, it is, but that's (in most cases) a result of their expectations being, frankly, retarded. This game was never going to be perfect and it was never going to make their bed or suck their cock, because reasons. But it IS a very, very well crafted game with an excellent, if a tad short, story, excellent acting, solid gameplay mechanics and a very believable, detailed world to exist in.
The incredibly f*cking minor gripes like... no crouch button, for example, or no body building, actually aren't a problem for me. As I can see that they've spent time putting in stuff that was more important. And before any of you c*nts say 'Yoga', I'm talking about the vastly improved weapon system, the improved shooting, the vastly improved driving (f*ck you, it really is better than IV, OK?)... all the stuff that elevates V above IV. ALL THE STUFF THAT PEOPLE COMPLAINED ABOUT IN IV, THAT THEY ADDRESSED, in fact.
Haters, inevitably, are going to hate.