First of all, what is it with The Order that makes everybody misunderstand people's arguments? It started with the whole misunderstanding of the problem with "linear" games (which was actually an issue with player agency) and now we have this.
The problem is not - and never was - length alone. The length is just the cherry on top of the list of faults people have found with the game.
Additionally, story based games are notoriously bad when it comes to "replay value". If the main attraction of the game is watching the story unfold, then after you beat the game, there isn't much incentive to come back. Sure, there are meaningless collectible and trinkets, but do those honestly motivate anyone to replay a game? Is the gameplay itself honestly compelling enough to convince someone that they just have to play through the game again? I think for most people the answer to those questions will be "no".
Games have to justify their price. Portal 2 did that by being extremely unique, compelling and though provoking, allowing gamers to get past its short length. How does The Order push players past its short length? Well, it looks pretty I guess...and that final boss is certainly worth repeated plays (for all the wrong reasons), but otherwise.....







