Rapid Recovery
(Passive): When this character recovers strain after an encounter has concluded, he recovers one additional strain per rank in Rapid Recovery.
Second Wind
(Incidental): Once per encounter, the character may recover an amount of strain equal to the character's ranks in Second Wind.
It seems to me that Second Wind is only better than Rapid Recovery, since it can be used during an encounter (and has no drawbacks compared to Rapid Recovery).
Am I missing something?