That is, unless, you have a synth/armor/cyber. PvP is still going to be the easiest way to get them... Plus Artifice & Cyber still gets the grade 9 mats from RE, whether PvP or PvE.
If you don't have a Cyber and a Slicer, now is the time.
As i told you, the new exotic element equalizer don't drop by reverse engineering modifications and enhancements, only armorings/hilts/barrels drop the exotic element equalizer. So you get 1-2 of those mats instead of 3-4 which in turn makes pvp less profitable, just as i said.