That's with PNH and -cost. Go and look at the nano costs on the top RK drains and Shutdown Skills as well as on the roots that Traders can drain into.
It's not just because of that at all, hell I haven't done anything with that Trader in aaaages, it still needs some work.
You're sort of biased, because your Agent setup doesn't lend itself to debuffers as well as the cookie cutter NR perked Agent setup does. It does however, give you better options in other areas. This is what we call a trade off.
I'm not arguing that high TL3->TL4+ Traders are suddenly nerfest and therefore they -need- nanites, what I am saying is, once you reach those levels, nanites do not necessarily make a fight auto one way like high drains can at TL1/2.