SEC also fights against trading with insider information, which makes me directly wonder whether or not a few of these employees will open up positions in Bitcoin as they basically before everyone else know that it is going to be approved (in case it does get approved). I definitely wouldn't be surprised if that happen to be the reality. SEC is nothing more than a joke with how they operate and "guard" the market.
The same also works in the other direction.
Guys with an information advantage might also place some big short positions in case the ETF gets rejected.
Some speculators will definitely take some profits around 8th March, just in case the ETF is rejected.
It is worth remembering that the Winklevoss ETF is not the only one under consideration, there are two others.