DislikedYou are right Bob but like most of the time . an advantage has usually also some kind of disadvantage behind it.
The locker or recovery trader has the advantage to turn the floating loss into a profit while the SL-trader booked the loss already. But nothing is 100% sure and there is still the possibility that the floating loss can get bigger or worse finish at some point as a loser too, while the SL trader doesnt have it anymore. The loss is booked and thats it.