The OB drive was one thing, but the chip and putts.....he lost four strokes on one hole. The announcers tried to use the long wait as a reason for the bad drive, but golf is a very psychological game and they all need to be able to screw up and leave it on the previous hole but a 2' putt?
OTOH, the announcers commented that Rai really needs to play faster- they said it was no wonder these rounds take 5-1/2 hours when 18 holes can be played in 2-1/2. IIRC, Rai was in a/the group ahead of Greyserman. Slow play is agravating and a few other players have had marshals tell them to play faster in the past.