Was trying to understand it too. Little green numbers on bars are time left on renew (I think?). Output area and CD monitors gave a suggestion of what else was being cast.
Except for a small section in dps chakra, I think the whole thing was done in serenity (would need to watch again to be sure: the HW: serenity icon disappears when out of serenity chakra), with very heavy renew use. Frequent use of binding heals, flash heals, cascade and HW:serenity. Noticed PoM, PoH and greater heal being used, but less frequently.