I predict that this change will last about as long as the abolition of the crackerjack uniform or the adoption of aquaflage.
Traditions matter. Those who got upset that the term "man" was in the names of ratings titles should probably have opted to gotten a job at some place a little better suited for their sensibilities.
Secretary of the Navy Mabus ought to be run out of D.C. on a fucking rail, but only after the traditionally-required tarring and feathering. That decision is basically a reprehensible mixture of extreme political correctness and stupidity and should be reversed.
UPDATE: That didn't take long:
Who knew that Hitler was a scope-monkey?