Eh,this happens all the time.It's the fanboy/internet culture we have.
I remember seeing Origins: Wolverine and thinking "Man,that was good.I really enjoyed it." So I run into a guy I know and I told him I liked the movie.And he was like "Yeah,it was alright." So, I kinda pressured him to tell me why he was pretty unenthusiastic about the film.He couldn't tell me.And I soon realised the "fanboy consensus" online was that the movie was a failure.
So I think the way a film is perceived online, colors the general opinion overall,eventually.People want to be one of the "cool kids",and not be seen beating the drum for what's considered a "bad movie".Me,I could give a crap what people think.I calls em as I sees em.