Path A hadn't even crossed my mind. I doubt I could make that sacrifice for one of my less used jobs.
I'll say this much- nothing prevents you from doing only 1 or 2 pieces, and Path A does some really great things for an Epeo Hybrid TP set. I used to have both feet/hands Path A, while head/body/legs Path B, and really enjoyed them. I have swapped my Nyame feet over to Path B, but as someone who likes mythics/ergons and their playstyle, I've kept the Nyame Hands and for my non-malignance jobs they're great for TP phase.
My bigger question is that which Geriond raises above- how often is RUN really at attack cap to take advantage of +PDL gear/traits? Add to this that if you like going /DRK for tanking purposes, when doing that at ML30 you're getting 3 tiers of Damage Limit+ trait from the subjob...and that alone is worth examining in my book regarding actual needs vs usable benefits.