Man, I can just IMAGINE the immense sum of money that was required to secure that exclusivity from the vibrant Xbox One Japanese install base.
"So, guys, we wanted to talk to you about maybe getting some timed exclusivity in Japan for Arkham Knight, we at Sony would really value the opportunity, and are willing to negotiate a generous-"
"We will do it for fifty bucks."
"...what, really?"
"No, wait!" >.> <.< -A brief huddle, with whispered voices, before one of them pokes his head out from the pile- "...seventy-five bucks."
"Um, okay, I-"
-pointing at something in the Sony representative's hand- "Is that a biscotti?"
"What?" o.o "Oh! Yeah, I didn't have time to grab lunch, so..."
"Throw in the biscotti and we'll make it permanent."
"I... well, it was the last one they had..."
"Throw in half of the biscotti and we'll make it permanent."
"...I will let you smell the biscotti." >.>
<.< "...deal."
In all seriousness though, it does suck when this kind of thing happens, and I have no doubt that people WILL complain about not being able to play Arkham Knight on their platform of choice. ...but since they're all Japanese, and there's likely only a small convention hall full of them, no, we're probably not going to be having the Internet explode over it.
Zanten, Doer Of The Things
Unless He Forgets In Which Case Zanten, Forgetter Of The Things
Or He Procrascinates, In Which Case Zanten, Doer Of The Things Later
Or It Involves Moving Furniture, in Which Case Zanten, F*** You.