I don't think reviewers made this binary at all, most compared The Order to obvious contemporaries that are not open world at all - Gears of War trilogy, RE4/5/6, Uncharted, TLOU - and found it lacking in weapon variety, encounter variety, enemy variety, movement freedom, puzzles, set pieces, replay value, boss encounters, AI, and multiplayer options. It's most direct sibling in the "cinematic shooter" genre, Max Payne 3, allegedly beats it handily in those regards as well.
It has kind of been the story of this gen, falling short of most of the masterpieces of last gen in everything except for graphics.