it seems that an aircraft in a low-energy landing regime is worse off than an aircraft on takeoff.
Not at all!
All it says is that if the decision to go around is made at less than 50' -- AFTER a decision to land has been made -- the airplane may actually touch the ground in the process of the go-around. There is nothing "dangerous" about this; it is simply a "touch and go" in the midst of the go-around, and becomes by some definitions a "balked landing." After the touchdown, the subsequent climbout is generally no problem whatsoever.