Majority of users do not need to be doing this though. I'm all for helping folks with 0KB left, but if you don't know why step 3 of this process is essential, you could really mess things up for yourself.

Just to clarify, if your device's date/time is that far out of sync and you're trying to log in, you could get an account locked just as a security measure. Every app trying to do that? Yeah, "system data" wouldn't be your biggest problem anymore.