Will not really abandon ICO, but for sure many will choose IEO over ICO just like me, because IEO is much more secured when launched in a reputable exchange especially like Binance, I believe they do in-depth research about any project to proceed in their launchpad thus making it more safer for many investors, it is like spoonfeeding a good project for the investors.

ICO's on the other hand needs your own research and analysis before you can catch a good project to invest with, but still it's cool because this will determine how good you are in specifying the good project from the bad ones.

Just be careful investing in IEO's be sure to only participate when an exchange is reputable enough to run such offerings.