What Tiq said.
They didn't change the
Five Second Rule, they just increased how much mana is regenerated from spirit. Without Meditation, Intensity, or Arcane Meditation, spirit is still useless to us.
I've tried stacking spirit on my resto shaman with
Darkmoon Card: Blue Dragon and
Bangle of Endless Blessings. They are no substitute for an actual regen talent: my mana regen was about half of what it was with m/5 gear.