To be frank I have no idea what is the purpose of such service -- Steam Client works rather well without one.
I only know that NT AUTHORITY\SYSTEM account has more privileges than Administrators group, which means everything on your PC is accessible to it.
If you asked me as a developer whether that is necessary I would say no -- The EA App should do whatever it needs to do under the regular user account which is logged in, and only ask for elevation when privileges are needed to perform tasks that require Administrator (but not SYSTEM) access.
The unnecessary background service running all the time on a couple million PCs under a privileged system account is just asking for malware writers to target it, and knowing how shoddy EA code is the holes will be found and exploited -- it's just a matter of time.
For me it is ridiculous that I need to accept an increased malware attack surface on my PC in order to be able to play a couple of games, and don't even get me started on the waste of my compter resources, "telemetry", and other personal data collection.
