First I knew about the nerf there was when I checked the code.  I hit Github before I hit the forums, so if you're working from a forum thread it helps to cite the link in your post.

I think mushrooms being at 14 is OK given that it takes some survival (and manually looking at them in your inventory, IIRC) to tell which is safe.  Gonna ask you to set fresh/safe mushrooms back to 14; purified 'shrooms as Headjack asks (the result of a crafting recipe that requires the relevant Survival skill, so no metagame knowledge gained) could be 10-12, sure.