All we've learned is he's not as good as Gabe Dean or Bo Nickal, and probably not even on the top half of the podium. Here are his other losses:
1/27/17 - No. 5 Sammy Brooks by 2 points
12/29/16 - No. 9 Jack Dechow by 3 points
12/2/16 - No. 4 Zack Zavatsky by 2 points
That's 7 points separating 3 matches. 3 matches is a small sample size (so I think making conclusions based on that is problematic), and these matches were all tight. I'm not counting his matches against Bo and Dean or thinking they indicate anything about how he'll perform in March (apart from he won't stand atop the podium). I'm looking at his performances against the others, and I can't conclusively say he's got a low probability of being an AA.
Would I bet my life on Martin AAing this year? No. But he's not getting blown out by guys we expect will AA. I wouldn't discredit wins against Gravina or Parker either. While I don't think they have a high probability to AA, they're both guys who I think could be in the Round of 12 on Friday night, so they have a chance in my eyes.