Even if the Photo is real, even if Obama did make the call, even if the story is real—ITS ONE GOOD CALL IN THREE YEARS! One lucky break does not a president make. Remember BP spill? The fires in Texas? The Obamacare, The other mess ups???
Obama deserves as much credit for killing Bin Laden as Nixon did for the Apollo Program. Neither started it, both were actually opposed for political reasons (because their respective political enemies started it), both assumed office after it had started and had political momentum, and neither could politically stop it - even if they legally could have. IOW, neither deserves credit - yet you didn't see Nixon trumpeting his role in the Moon landing, etc. like an opportunistic, egotistical child.