Ballistics does not have a lot of love as many think that bullets are usually not the worst danger. With a high Int, you will craft several tac vests that will cover your needs before level 18. And after that, 6 threshold will not change much of the damage you take.
It has its use but it is not a game changer as many other feats could sometimes be.
It was already mentioned but feats really depends on skills, synergies, strategies,... Probably, in your build, it could make sense and has its place.