Whew, lots of things. Some stuff I've just already fixed in the release notes. For the other things:
1. Regarding human units ignoring available tokens, I'd need a savegame to look into that. No idea why that would be.
2. Regarding soul cost of mytho units: honestly "messiness" has never really been a concern for me. I think that there will be more stuff that mixes in soul costs, and certainly resource costs. All-soul costs was never something that was completely intended, that's just how it started because I can't retroactively add a cost like that without care or I risk pissing people off. I think that the current style of soul costs helps make the mytho game slightly more challenging to do, but I knew it would not stamp it out since buildings also give souls.