Amazon has flexed its muscles with military-style action series (see “Tom Clancy’s Jack Ryan” and “Reacher”), but “The Terminal List” adds a numbingly simple-minded revenge saga to that subgenre. Despite the promotional benefits of featuring star-producer Chris Pratt as a grittier kind of avenger, this brutal eight-episode slog squanders its talent in front of and behind the camera.Amazon has flexed its muscles with military-style action series (see “Tom Clancy’s Jack Ryan” and “Reacher”), but “The Terminal List” adds a numbingly simple-minded revenge saga to that subgenre. Despite the promotional benefits of featuring star-producer Chris Pratt as a grittier kind of avenger, this brutal eight-episode slog squanders its talent in front of and behind the camera.