You said it yourself - patches. We received the game well in advance of release, and well in advance of those patches.
That cannot be true. There were no review copies for anyone before release. I know that 100%. Don't tell us any BS here. Larian weren't even ready with the game until literally an hour before release...
If your reviewer played/reviewed anything before release it could be only the early-access beta version which in no way qualifies for a final release review.