Not only that but its an instance of so called "adventurism". Such an action wouldn't achieve much for a cause, if there is not (as shown in the movies) a larger movement behind it. The book which the film is vaguely based on and which it took the title from, makes a good argument for environment activists to move from peaceful demonstrations to destroying property (see the video I linked for a better explanation). As shown in the movie, not only is it an environmental disaster, but you gave fuel to reactionary forces