Header off the line wasn't awesome, watch again. Yes he was in the right place, fair play for that, but he watched the ball for about 3 seconds before it came to him.
What would you suggest he did instead?
Jump 6 feet higher and head the ball while it was 15 feet in the air?
Don't think it was suggested that he did anything wrong, just that the header was what you would expect from anyone who has ever played football before and probably not "awesome".