It's going to be difficult to balance this in a way that not every kingdom does the exact same buffs because some clearly appear to be better than others. In fact there's only like 4 real choices (depending heavily on the values I suppose).When I first read it I was also expecting more of a specialization tree where a kingdom would choose its "type" like the industry buff kingdom, nature buff kingdom or mage kingdom of hearth magic / psyche buff etc.
Higher quality ores is the one standing out the most, I mean its not even a kingdom buff lets be honest, the only place kingdom where cairns are going underground is under the founding village.
It's definitely better than plain old +3 surv etc but still needs work.
Increased ore quality is a very attractive a prospect tbh and if all the kingdom go this route then this patch is only taking away benefits from all the hermits and randoms in kingdom, they gain nothing.