Correct, also some of the AQ offset leather, and actually there is quite a lot of leather / mail with really good stats for damage.
This is something I think blizzard really messed up on… Leather should have always been the king of output stats while mail was a compromise for PvP Arms / Ret / Enhance, while Plate should have been hyper survivability.
To crown this off also make bosses hit 150% harder per swing to ensure plate is required.
Tho, some sets would need reallocation, such as warriors / pala / R10 /R14.
I would also move hunters to leather full time removing mail armor from their options., and move all caster gear to cloth only; no more spell damage leather. Healing could remain on certain leather / mail…
Tho this is all too much changes requiring a full on rebalanced game.