The SEC generally doesn't like any unregulated financial products with a track record of fraud, ICO or not. The organization's job is to protect US investors from potential fraud or overly dangerous activities. Even if you're a cryptocurrency proponent, I hope you can see why ICOs might not be safe for the general public and thus are being hammered by the SEC. There's even
https://deadcoins.com/ to track all the failed/outright scam coins.