Hole outs from green side bunkers have to be way more frequent than 80 yard shots.
But, I’m guessing he couldn’t get it in the green side bunker from where he was….so I think he made the right decision.
From what I remember watching the tournament.
He said that he could carry it 180 from that lie, and if he landed it where he was aiming, the ball would hop left into the water.
In my league we concede or give putts all the time. It is up to player and to maintain a pace of play (some guys are super slow causing 3 hour to play 9. I am the one behind those players).
Giving a putt is at your opponents discretion. It is usually within a foot or 2, or if you are 4 putting for a 10 (since Ghin will wipe that score down anyway).
I have never seen someone give an 8 foot or 30 foot gimmie.