Missed that bit in Azure Talent, makes it even better. However, it also binds your single point of Incarnum for the day...
Incarnate 3 would give you another point of essentia, AFAIK, and increase your capacity. Well... it's a close call. I would not make this decision now. When, during play, you realize that you don't get enough healing from the Therapeutic mantle, but think that another 2 points per hit would be worthwhile, then you can get Incarnate 3.
Of course you don't have to be fully healed after each fight. The goal should be increasing your effective combat time until you need healing or go down. After fights it's pretty simple to always be fully healed, and the cost is low enough to be nearly negligable - as long as SOMEONE in your party can use wands of LV.