Why don't we IEO? IEO is currently quite hot and it helps us mobilize capital faster and less costly.
STO is now a form of capital mobilization which is quite bad. I have witnessed many projects using STO and most of these projects have only achieved softcap such as Bitbond.
IEO is not legal in the United States, so investors from the United States are not allowed to invest in IEO.
STO protects the interests of both the project itself and investors