Well if it is an upgrade I will roll on leather and cloth at this point, basicaly while shaman prefer mail for the armor, sometimes an upgrade is an upgrade just like druids in cloth.
One of the percs to being a shaman is we have access to mail, leather, and cloth. while most wont use anything but mail, some will take advantage of this and use the other ranks of armor to better there dps.
If I was enh and needed the hit I would have rolled on it too, it has lots of hit for a shaman, and also lots of agl (we get ap from agl now).
It sucks you missed out on tanking pants, but I can't say those wouldn't make a dps enh shaman happy.