Soo.. there's some ambiguity here. We finished with 15 minutes to spare -- Danny, Chelsea, and me were all working on it. But then I got distracted and completely failed to update the goal until I noticed the legit check.
The fine print above doesn't explicitly say whether we get to follow the same rules as regular users, only specifies whether using the refresh loophole is in fact allowed. In the case of UVIs we made it explicit that the commitment is to actually tweet the tweet. There's no leniency for having deployed a UVI but not tweeting it, but forgetting to enter the datapoint on Beeminder is still forgivable.
So, the inbox was zeroed, but we forgot to update before the goal derailed. I'd say "Not legit!"