I have to directly farm CCB conversion gear every once in a while (LS 1C) to stock up again. BW trickles in with LS Kyro farming, but there's not even a good node to go to if you wanted to sacrifice Kyro farming for BWs. Honestly, if there was a node as good for BWs as LS 1C is for CCBs, I wouldn't complain about having to go farm that node for a week every once in a while. But I also wouldn't complain about a few gear pieces getting a better BW conversion rate.
Of course, I'm in a place where I will never hurt for Kyros again, most likely, so that's different from the majority of players who wouldn't be able to benefit much from just adding a BW-specific node in LS or DS battles. I think for most people it would have to be Fleet.
But you know, that might be part of their eventual plan. They clearly want everyone to have tons of r7 toons, not just a few, but tons of them to do Ops missions + LS, DS and Mixed TB battles all on the same day. They've fixed the gear crunch below g12. Things are almost trivial there now. So maybe at some point they plan to take one or two of those nodes in Fleet Battles that don't currently drop gold salvage and add CCBs or BWs directly -- not salvage that converts to them, but just them.
Given how conservative they are with changes like that, I wouldn't expect it to happen for a full 2 years after the new Raid economy went into effect, but since we're a year in on that, it doesn't have to be that far away.
But yeah. A fleet node in 5-Normal or even 5-Hard for farming them directly would be an interesting solution, rather than juggling conversion rates.