DJ's a great guy to follow; one of a few I listen to on YouTube.
There are some serious EB haters on the Ford truck forums, but they seem to be just the vocal minority. These engines do want to be worked and they appear to benefit from an aggressive maintenance plan. The engines have been around now long enough that the high-mileage drivers are reaching the 200-300k mile mark. Haters often point to random posts on a forum where limited details are provided about the motor's condition (maintenance history, driving history, modifications, etc.). It's interesting info, but not what I'd consider "facts and data".
If I'm being honest, I think where the jury is still out is how this engine holds up with average or below average annual mileage, extended city/short trip driving and/or maintenance performed at Ford's recommended intervals.