It is very obvious that what we got is not the entirety of the story they wanted to tell. It should be obvious from the fact that they resolve pretty much none of the plot threads that are set up during the story. Two quick examples of places in the story where it feels like something is missing;The game is complete. Just because you thought it was too short doesn't mean that it's unfinished. They told what they wanted to say with the game, they're was no or next to no bug in the game as well.
This kind of post are why a conversation surrounding The Order is next to impossible here.
1.
Rebels are attacking the bridge leading to The Order's headquarters. You fend off the rebels, but Galahad goes a bit mad at the end when trying to get the location of a rebel leader. After punching a man and getting the information, Isabeau says she's headed straight for Galahad and Galahad seems to calm down a bit, standing at the end of the bridge... we fade to black... and now Galahad is in the place where the rebel told him their leader was. What is with the awkward fade to black? From how the story plays out it seems obvious that there should have been a scene in between these two where Galahad is reprimanded for his actions, which gives him some actual reason to go rogue, but that scene just... isn't there, and as a result the transition from the bridge to the brothel and Galahad's emotional state in both of them is just... off.
2.
You eventually discover a shipment of vampires planned to head out in six weeks. You get caught and imprisoned and tortured for four weeks, then need to recover for two weeks after escaping. That's six weeks; lines up nicely to pick up that plot thread and stop the shipment. ...but instead you are rushed into an abrupt ending that has very little to do with the events of the game.
Also, here's a quote from the game director;