well, lrm is also, but not only a structure killer/ defense counter now. its also a counter to the light units.
this baby is probably totally useless against anything else than structures, but is very good at exactly those, so with increasing defense toughness and range, lrms slowly get replaced as defense killers and limited to their role as light frigate killer.
that at least was my assumption. it was said torpedo "cruiser", so I guess its in the cruiser class and one of the later prototypes to unlock. and maybe quite an expensive toy. heh, some reviewer even called it a superunit weapon, but I doubt its that strong.