Recently several exchanges have announced launch pad, where ICO are sold and listed in those exchanges almost immediately at a high price.
This have attracted many investors.
Please while investing in the IEOs don't forget to investigate most of those exchanges because very soon scammers will soon take advantage of the IEO.
You have point but what can keep you safe to some extent is taking part in IEO launch on reputable exchange like binance, bittrex, okex because they will want to protect their name and reputation.