Utter bullshit. Friday the 13th films are pure campy, cheeky goodness. If you don't like them out of sheer 80's nostalgia, you're either too young, or you've never watched one pre-Takes Manhattan. Jason Vorhees is an icon.
You don't go into a movie like that with the same set of expectations that you would another film...there's plenty of enjoyment and fun to be had. Obviously, you don't find it in the writing or acting.