Excuse me.. let me CLARIFY for you so that you don't get confused as to why I stated haste + crit
Gift of the Earth mother is only a 20% reduction in GCD.
Shaman totem is an additional 5% haste
If you're smart and spec into Celestial Focus, thats an additional 3% haste
If you have a boomkin, theres another 3% haste
So through talents\raid buffs you get almost get to max GCD redcution, but not quite 1 second, meaning you just need a bit more which.. you get through rings\gear... anyways..
On the crit subject, Nourish is an extremely powerful heal when it crits, making crit a bit more appealing to druids these days. It's just a bit better than glyphed regrowth with 4pc T7, assuming it crits often.
Anyways.. Thats all I have to say for now.