Ritual of Refreshment gives Manabiscuits, which restore 7500 health and 7200 mana over 30 seconds. It's just about making life a bit easier for the mage, now everyone can grab what they want. We're not attempting to or currently buffing the water/food you would normally conjure.
Mana biscuits are delicious little items that I used to spend an unhealthy amount of scourgstones on back before the Expansion was released. Knowing that the Ritual of Refreshment will have this simple but effective sustenance for my party not only makes me happy, it also makes me a bit nostalgic for those days of grinding Argent Dawn rep. But I digress.
It seems that there is only good news coming about this particular spell, although I would love to see a little improvement in the amount of mana the ritual provides. After all, there are three types of healthstones available from a warlock's soulwell, aren't there?