I've played in many a real golf tourney. I hit a stick from 180 once on a hole-in-one hole. I thought I won the truck, but the ball shot off the green at least 30-40 yds and we didn't even make par. So, sadly, it may be a bit unrealistic......but not a lot.
Granted, on WGT, I've hit a 7i that hit the base of the flag and shot off to the left OVER some greenside trees and into a house's backyard. WGT gave me the OB penalty AND took my ball. All I could do was laugh since that was dialed up a bit strong.
Either way.............whatever. I didn't lose sleep.