It's not that it's irrelevant but at this point it would already have been calculated into the equation.Originally Posted by Worshaka
Also, we now have Glyph of Shadow as well which even further ups +crit as the superior stat as compared to +haste, and it ups spirit a bit as well(spell crits in shadowform increase spellpower by 10% of spirit for 10 secs)
Edit: Atleast it ups crit untill a point where you can more or less be sure to keep this buff up