The only reason that it matters to me is that I wouldn't like to trust the forums and then end up losing six hours of play as a result. Besides, it's all part of the Great Turn 10 Metagame: Guess What's Happening Because We Can Only Communicate Through Leaks.
P.S. this is also the first Forza game to have a physical Early Access (FM6 only had a digital Ultimate Edition). Some guy over at the fm.net forums (good ol'
LAZARUSceelai) just got his physical copy in the mail and is in the process of installing it.
This may be a good reason for a staggered release. The pretense of releasing the game at the same time worldwide's gone the day of the dodo.