Warriors absolutely 100% proc shadowblight w/aphotic. I confirmed it 100x over in my testing. Freaking insane with Aphotic aspect, shadowblight, and blighted. The easiest way to KNOW they were triggering shadowblight is to also have the Blighted aspect on, because not only does it do the sound effect, but it also shows the stacks as a buff on you. They did NOT trigger it unless you were using Aphotic aspect and trigger Skeletal Priest buff (they only do the shadow damage while they’re buffed, then it reverts back to physical).
Furthermore with reapers, both types were triggering the 3 sec CDR but the second type also generated corpses, and they also both work with abhorrent decrepify to trigger the stun & even more CDR (the lucky hits on those are really weird, minion attacks do somehow trigger them).
I even confirmed the CDR interactions using a stopwatch and timing dozens of tests to make sure that I was getting reliable, consistent proof of overall reductions and stuff. Turned Army of the Dead from 70 sec into 15 sec using reapers with aphotic and shadowblight and decrepify without attacking at all myself.
I isolated literally every skill/passive/aspect etc. one at a time and confirmed definitively every interaction. You can check out my full post on the PTR forum if you click my name, I put a stupid amount of time into reviewing every single thing from aspects, items, skills/passives, paragon boards & glyphs, and book of the dead choices, as well as combinations of all of them.
While mages, by far, are better damage dealers than any warrior type, I think that running with both seems far more beneficial than sacrificing the warriors for the +5% crit chance or +15%x shadow damage. They massively increase your damage, but they all have a ton of benefits. The defender taunts are technically a crowd control too, so you get bonus damage from that, too, while the reapers CDR is insane cause basically nothing will ever be off CDR. Constant corpse tendril buff uptime, constant blood mist availability, constant uptime on golem active, crazy short CD on ultimate.