That step will be a big relief to investors however that can't happen easily and it's not easy as what you think. SEC should be first to regulate ICOs and next submitting kyc documents of the team especially the CEO. However, this won't still guarantee no scam risk though it will just lessen.

Personally, I spare myself from investing in ICOs, no matter how lucrative the project is as we all know how it will end up.
It will be useless eventually.