Its just as asinine as moving at the speed of light in the first place.
If you want to bring up every power ever used in the history of ever, ten you also have to take into account how easily these powers have been countered.
Heroes and villains with super speed have been beaten time and time again, often by normal people. It doesnt matter what would "really" happen. We either take into account the times the superpowers have been negated or we exclude them.
As it is, super speed has never been an "I win" button among superheroes.
Besides, DC is fucking stupid with their heroes. Even when it comes down to silly board games like heroclix. Marvel has their biggest heroes cost around 170-200 points and then DC releases a Joker figure thats 200+ points. Likewise, heroes like Robin and catwoman cost more than Wolverine, X-men, etc. DC has total Little Dick Syndrome and overcompensates whenever possible.