The Software User Agreement, to be called "SUA" herein, is not actually a license - it does not grant any rights to use the software and that is why it must reference other legal notices and agreements. The main purpose of the SUA is to describe the potential layout of the legal documentation in the accompanying content.
The EPL was written specifically for the Eclipse Foundation. First, it changes the Agreement Steward, formerly IBM for the CPL, to now be the Eclipse Foundation for the EPL. Second, it addresses concerns some Eclipse Foundation members had with how the CPL deals with possible patent litigation. FAQ
EMO - Eclipse Management Organization
PMC - Project Management Committee