The speculation about how the film may or may not perform is a complete waste of time.
In what sense? In this case it is not just speculation, it is a prediction based on a model, that has been scientifically validated, a model which shows movies with less interest on google trends tend to have lower box office returns, whereas higher interest generally leads to higher box office returns. So, it is simply an indicator, an indicator which gets more accurate as the movie’s release date approaches. As such it is not a waste of time, any more than it is a waste of time to predict the weather, a prediction which in both cases tends to be more often right than wrong.