IEO is the order of the day, now all the projects who failed to raise funds during their ICO have switched to IEO for them to be able to continue the project. They don't want to abandoned the project because of lack of funds.
Exactly, many presumed dead projects are back alive with so much activities and this IEO seems to be the last life line for many of them to set things right. It is a better way to raise funds for projects.