Still you'd think Ubi would want to clear this up right away.
I agree. Which is why I don't think it's legitimate yet.
Hate to break this to you, but publishers don't send content incomplete versions of their games to people for review with no mention of it in the review guide or by PR. Especially not two different versions with different content without any mention as to why.
How do we know it was a copy sent for review?
Wouldn't IGN or another major publication already have their review and have it published as well, if there were any embargoes lifted?
I think it's fishy. It seems to me that this "reviewer" might have an alpha or beta copy, maybe one of the copies that journalists get for impressions/previews, and attempting to pass it off as a review.
Just seems weird to me that the only source of this allegation is one rando out there on some blog that nobody's ever heard of.