Yes, STO's can be a new attraction for new money to come into the crypto market.
I see many people are tired with utility tokens (especially token without good mechanism) where they don't get anything from holding it and just hope the price will increase.
I believe as well STO are what this market need to get back on it's feet, not on the short term i reckon, but perhaps within 2019
They will be backed by real world assets (for example fractional ownership of a real estate, or backed by stocks, 1 stock = 1 token) or used for dividends (like stocks, anyway)
That would be the horror of all banks. The little man can safely keep his money in a wallet accessible only to him and by investing in a sto he can define his own return.
Before that, the banks are trembling at the moment and that's also one reason why crypto is developing so slowly.
But maybe the slow development is good too. So it comes creeping and before the powerful people and organizations notice it,
crypto will be already indispensable, just as we today can't turn off the Internet just like that.