The course would have been a lot harder had it not been for the rain. It really made the greens extra soft and there was really nothing the USGA could do about it. Yes, it was a bit easier, but there have been scores like that in the past Opens. It wasn't an anomaly. The rest of the field only got to -8 in the last round. The fact that Rory tore that course apart isn't because the course was easy, it was because he shot lights out. His irons were spot on and he was throwing darts out there. It was pretty ridiculous.
Again, McIlroy shot lights out. But to pretend that it wasn't easier to do so is foolish. He's a terrific golfer, maybe the next Tiger. But to say that this year wasn't an anomaly is not accurate.
Take a look at the leaderboards from the Opens in which the previous record was set/tied (bear in mind, that the TOTAL score is what counts for the record, NOT the strokes under par):
2003: Jim Furyk wins with a score of 272 (-8). Only three other golfers finish below par at -5 and -1 (x2).
2000: Tiger dominates the field, winning by 15 strokes with a 272 (-12). That's right, no other player finished better than +3.
1993: Lee Janzen wins with a 272 (-8). Nine other players finish below par, but only three of those players finish better than -2.
1980: Jack Nicklaus cards a 272 (-8). Runner-up finishes at -6, and three other players finish with -4. The rest of the field is no lower than even par.
This year, McIlroy cards a 268 (-16). NINETEEN other players finish below par, and of those, SEVEN finished at -5 or better.
It's not so much McIroy's score that has me saying this wasn't even close to a typical U.S. Open. It's the DEPTH of low scores. I mean 268 and -16 are really pushing the realm of "anomaly" anyway (Scores like that are VERY uncommon. The winner is typically -4/-5, with most of the field in the green. But TWENTY players under par?
To demonstrate just how insane that number is, consider this: If you combined the number of players below par in past tournaments, you would have to go all the way back to 1997 before you hit 20 players under par. That's right: there were more players under par in THIS U.S. Open than there were in the past thirteen U.S. Opens COMBINED! That, my friend, is an anomaly.