Now we see through a glass, darkly...
- Apr 5, 2016
This was just some background for those not as familiar with the difference between how AF works in mirrored vs mirrorless cameras. (I'm just posting because I saw your "haha" icon and I wasn't sure if my original post came off as trying to be funny?) I think it's an important distinction for those that are interested in Eye AF to know that it only works in Live View, and not through the OVF.
The new OVF PDAF and metering sensors, unlike older PDAF and metering sensors, are effectively CMOS imaging sensors, giving OVF the same capabilities as sensor based focusing, other than accounting for the differences in resolution.