A film review is not a criminal science investigation, a food review, or even a car review. Film is a creative endeavor, many people consider it to be art. I'm sorry to burst your bubble but if a critic only tells me that a movie has competent direction then that review tells me one thing: the movie is a shallow experience that didn't speak to said critic. Roger Ebert, considered one of the greatest film critics of all time, would often talk about how a film spoke to him based on his own personal experiences. In other words, he would bring his personal bias into the film and that would influence how the material spoke to him and then he would tell us this. A film review is an opinion piece: if you have a problem with this then you have a problem with film criticism.