I also wish Extinction Core and Annunaki could be updated again - keeping them functional would be enough for me, i think, both mods include enoug content.
But i understand Psycho and others that stop working on their mods.
ARK was official fully released more than a year ago, and wildcard never stoped touching basic game mechanics. Fixing bugs, exploits or sell dlc's without destroying existing mechanics is okay, but what wildcard does is like ark never left early acess. They permanently destroy or change existing content, what forces modders to fix and rework their mods again and again - that costs a huge amount of time, and i think that's the real reasons for many mods being abandoned. It's a shame - Mods like this are, what makes ark really a great game.