SEVU is the poster child for the argument to independently audit public companies quarterly. The only reason they are not is that companies gripe that it is too expensive.
We can only speculate as to the amount of miscalculation. If it's bad enough you can be sure they will step in with some enforcement. The public must rely on filings to make a decision to buy or sell a security. If companies can grossly misstate their revenue and then just file an 8k and say we're sorry, investors would lose faith real quick. I hope that the point is moot.