Not really, even if you had every capitol ship with FDT they would still each gain 2 turrets making the base turrets 5-6, that neuters any bomber runs for the most part and frees up your reliance on fighters for defense even more. Thats worth at least 10pts (5 for each extra turret min.) and then they would be able to re-roll misses, worth at least another 5 pts. The other thing to look at is the range, with it being at 15cm your only going to be able to cover a small group of ships unless you bunch them close together so having multiples allows you more coverage. It is however still on the lower end of the scale points wise imo along with GSTM.