Or it means that half of people didn't even bother to read the article. They use their own engine which was made for DX12, and PS4 is OpenGL.
From what I've seen in Warlords, it is a bold and very promising idea of blending genres and so far it works. Community around this game is also friendly and mature which makes visiting their Steam forums a very educational, pleasant and relaxing experience. Thinking about No Man's Lie and X Rebirth just makes me appreciate this game even more.
Many times I heard that publishers are the ones to blame for G2A way of doing things. Many publishers exploit small dev teams by generating 10-50k keys on Steam store, selling them directly to G2A without giving any money to devs. At that point, G2A is not to blame. But it's true that devs don't get any money from those purchases, but they were already screwed by publisher so damage is already done. :(
Engine is Dx12, and both PC and XB1 are DX12. PS4 is OpenGL.