This change would make Fatboy slightly better and increase faction diversity. Fatboy can quite easily be killed by tac missiles and this would help it a bit. Would anyone like it implemented in the next patch?
There is a mod that gives the fatboy TMD but I believe it is only on GPG net vault which is now down. I am not the author of this mod but I have uploaded it as an attachment
without TMD
With TMD
this mod gives it 2 naval tac missile defences, one for each side.