Lol, some people's comments are quite funny, how they think they are safe wiht the IEO. you're not even sure about that, and anything can happen. A project that seems good can today can turn out to be a scam tomorrow, you never know all these, they do happen. I have seen a lot of projects that started out as being legit but at the end they turned to something else. Even ICO ends today, scammers are still going think of other ways they can continue their work of getting people scammed. It's all about knowing the projects you choose and the team behind it.
The only project that one is safe with in the market for now are Bitcoin and Ethereum, and every other projects be it ICO or IEO can only try their best to make it work too, because even the developers of those projects only believe that the project will survive but are not completely sure of its success due to the weak products they have.
Few projects that I think can still fall in the league of projects that can manage to push to some years are just the ones at the top coinmarketcap. So, I agree with you that because its IEO,doesn’t make it a successful project, they will start their project well, but ending well becomes issue for them as they can no longer manager it in a proper way any longer.