You know who's costume they actually couldn't
He also missed the point of that comment which was to point out that to the people who had gotten into reading comics in the two decades between Crisis on Infinite Earths and Final Crisis Barry Allen is some stranger displacing their Flash.
So instead of restoring status quo they were in fact changing things.
Exactly. Go ahead, roll Supes back to when he couldn't fly.
The Speedo is dead history; live with it.