Al is a great win.
Maybe not as great as RDA, but still great.
Folks have been saying, rightfully, that his resume wasn't proof of his ability. He needed to face legit top 10 and top 5 competition. I think the tide has turned with four of his last five wins - MJ, RDA, Barboza, and Al are all strong quality opponents at LW to measure a fighter's ability.
I see no reason he shouldn't be the betting favorite against literally anyone at LW. I still really want to see him vs anyone in the top 5 he hasn't fought yet, because styles make fights.