If I put "less" on rain because I want less rain, it rains around 3 times per 4 seasons, and only in spring. If I put more clockworks because after 60 days I can only find a couple gears, I can hardly move without seeing a clockwork. If I put more Goose/Goose, than there are 3 in the first 20 day long spring of my world.
Basically, you go the whole nine yards or not at all.
I feel there should be advanced world settings for players who want a more personalized experience. If I'm playing with two other people, I may want more enemies and more food to balance it out, but "Default", "More", and "Lots" and huge jumps from each other. I think this is most necessary for length of seasons and days. I can't find a mod that does this, and it would probably be better as an official feature with all the changes going on right now.