Hard knocks to the noggin!
Seriously, I have been lucky in my career, with the only two lawsuits against me from a sod supplier who thought it was unfair that I rejected their dead sod or sprigs for a project on my owner's behalf (it's my job, as described in the contract, also he was obligated to produce said sod on time, for the price agreed to, and both live and in good condition, which he failed to do) Of course, I tend to separate my greens and tees further than many. (I will say that after participating on this board since 1999, I have tightened up those distances a bit, but mostly for tees right behind a green, since statistically, almost zero shots go over greens on the fly - not tees adjacent.)
I have occasionally testified for clients on personal injury lawsuits, and been asked to testify for others (but turned it down because I just couldn't lie) and when someone gets injured, it's pretty hard to defend, "I wanted the course to be like the Golden Age or the original St. Andrews where you teed off from the previous green" to a sympathetic jury. If history shows that tees too close to greens result in higher than normal injuries, then that will be the legal "standard" architects will have to face, at least, IMHO.