Lol, the cup is the same size but the course is 7400 yards with rough and greens stimping 12 or 13.
The notion that pro golfers play on tracks even close to those for amateurs is laughable.
And there's a reason for that, because if you put PGA golfers on a short track there's no telling what they'll shoot. That's one of the reasons that the hardest course of the year is pretty much always for the U.S. open, because they are looking to put out the most rigorous test of golf they can. As the USGA says, they're not looking to embarrass the best players in the world, they're looking to find them.
The same goes for pool, when the pressure really gets poured on at the end of a match, that's when the twitching starts, and it's the better player that can hold it together and get the balls in the pockets when the equipment is super tough and any slight flaw leads to a miss. Finding out which player that is is the point of the exercise.