The main aim of the SEC is to provide their investors with optimum security. Fraud, Theft and piracy activities are always out there, so, there are always concerns on safety issues. Due to these the SEC shows negative interest in bitoin, for the time. But this shall pass in no time.
Yes that is really not a good news in favour of bitcoin, and I think that all such limitation should e removes from it. But I am hopeful that this news will not affect the bitcoin price so badly and hopefully the investors will remain calm and will continue holding their shares in bitcoin.