100 percent this. Do you ever notice how underground dwellers seem to be SO resistant to ANY forms of threats to their cozy lifestyle, yet above ground is consistently made harder and more complex?
We now have to contend with better AI pathing, zombies who can knock down pillars and possibly hit up to us on ledges, bears who can knock down tree houses etc. Oh but make ONE suggestion to add some gas underground and all of a sudden we get wishes for cancer for breathing fresh air. Be Tee Dubs there IS sunblocker in the game already. Go ahead and look at creative. So maybe one day there WILL be cancer from the sun. And Ill gladly accept that challenge. Because complacency in any game = fail.
You know how to get an underground settler out of his hole? Drop an ant down there, he will panic REAL quick.