IEO gives the investors more confidence that they will get a higher return and that they will be able to sell their holdings quickly on an exchange. ICOs will die out soon
First of all, IEO ensures investors' rights and safety about their capital. Not sure if the project will succeed. But That will be the right direction to differentiate itself from ICO. The IEO's adaptation is bringing trust to investors. The IEO still has certain risks that need careful consideration.
I fully understand your anxiety, but nevertheless it is better than the company ico. In any case, the trading exchange assumes great responsibility for checking all the available information of the new project and thereby provides guarantees for investors. Although for a bounty company this can be a heavy loss, because bounty hunters may become less popular.