Finally, an update that answers the driving question that I've been presenting myself with for a long time now: Why did I bother leveling SAM to 75 in the first place?
I can now say that the premonition of this very update is the reason! Square Enix has started its long journey down the path of redemption.
Edit: I don't think hand to hand is considered a two-handed weapon, simply because it's two weapons, one in each hand. You hit twice even if you're not a MNK, similar to the way that you would if you were holding two weapons as /NIN.
Then again, it's a single weapon that disallows the use of a shield or a secondary weapon, so I guess it could go both ways.
XI Wiki

