ICStats on 01 February 2015
They do test games for crashes & non-conformance & stuff, but if the publisher is OK with the game having slow framerate sometimes, or having a ton of DLC that's up to them.
Having said that, in the case of AC:U it was Microsoft's big bundle which HAD to be released in time for the holidays so MS would fast track it no matter what, and then if Sony tried to block it then they would not be able to release on the same day. This kind of tension will get games released even if they are broken.
Lucky Nintendo doesn't have that problem as they have no 3rd party or, the 3rd party has no problem delaying their games on Wii U.
My 8th gen collection
