I'm sorry this happened, but not surprised. Having flown EY for the first time last year in J (SIN-AUH-VIE and return), my sense is that they are quite uneven and unpolished in many respects. To be clear, there are some excellent cabin crew, staff that try hard, and so on. And depending on the aircraft the hard product can be pretty good. But the management and the systems in place are not up to the standards of a world-class airline---at least, not right now.

IFE not working? Not surprised one bit. My SIN-AUH flights---one way was delayed about 4 hours due to technical issues, and then there were mechanical problems with my seat (they offered to move me). On the AUH-SIN flight, the seat controls stopped working and they tried resetting several times.