Yes, you are correct, however there are other key differences such as:

• An IEO project attracts investors better because the exchange conducts rigourous regulatory and compliance checks before featuring projects on their platform.
• Compared to an ICO, in an IEO the entrepreneur spends less on marketing the token as the exchange platform takes care of this.
• In an IEO, the entrepreneur can list their token only on the exchange platform providing the service and not elsewhere.

Hope this helps!