What is it with people feeling compelled to talk about starship troopers movie being different (lesser) than the book?

Like, there's not that much to the book. It's a decently written "joins the military" story with a couple of well developed characters and one unique idea about sci-fi warfare (the suits spending most of their time jumping, which in retrospect would just make you a giant target...)

None of this is bad, it's just like, there's dozens of other mil-sci-fi books and yet everyone has to jump in and go "but the book is better!!!"