Found something interesting, also way far away to see where the game truely breaks. Right now getting the first coal was a challange enough as they both tech and pop blocked, once got the coal the tech points shoot up 2k with easy.

Anyhow, the interesting thing -> playing as High elf, Asuryan's Blessing somehow increases the diplomancy deal costs. Either the 'cult of Asuryan' or the 'honour' the other two I tested and they aren't responsible for it.