Kinda merging the AutoTargeting tech and the PointDefense tech from KM into a new tech, you could make this work.
Ship auto-fires enabled weapons (perhaps with a few more restrictions, kinda like autotargeting does) into incoming torps, destroying them (kinda like in PointDefense).
This way AIs would use it (like AIs use the autotargeting), and it would be easy to add it to ships (FTech easyness)
Not that hard to make. Infact, could be a nice opportunity for young scripters around here
