Topic: Should I not use Gmail at all?

I'm confused by the following that i found in

"Should I log into Gmail when I use Epic?"
"If you’re doing searches via Google in Epic, then we would strongly recommend you not log into Gmail while using Epic. Google’s new privacy policy allows it to aggregate your personal data across all its services. So if you’re logged into Gmail, then Google can track your searches."

So does this mean that Epic recommends that I not use Gmail at all?
Or does it mean that I should never use Google Search?
Or never use Google Search while in Epic?
Same question for Google Calendar, Google Drive....