The fact is that with cocoon you can use other form of efficient healing considering you should have good HA: so you can use cocoon, Halfing DM, CSW, CMW, SF pots. With BF you can only use reconstruct, everything else is going to suck bad. So putting Recon on a 12 sec CD is going to kill the race, cause you would be better off going fleshie with good HA.