That doesn't look like oil to me, maybe some of the milky substance. My Mustang GT (4.6L 3V) has a JLT that collects 100% oil, and I have to empty it out like every 300-500 miles so it is collecting about 1 oz every 1000 miles. I would just pour it back into the engine as there wasn't any moisture or byproduct.
The EcoBoost, from everything I have seen, seems to have an effective oil separator on the valve cover, it's just the condensation/vapor collection is quite a lot - probably from the GTDI fuel dilution? I know the 2016 SHOs got rid of the factory oil separator, I'm wondering if the 2015-up Explorer Sports are the same way.
I've got the new Gates PCV hose ready to go on there to test. You should have smelled my SHO with the JLT-equipped airbrake hoses. The hoses reeked of gasoline, and it was wafting through the engine compartment and into the ventilation ducts. I can't believe an engineer would approve that design.