Just messing around, seems there is limited availability at different rates than with QR.
AUH-DOH 14k on QR vs 9k on EY in Y. Biz/First also a better deal at 19k vs 24.9k. Either way though Avios still cheaper.
AUH/DOH-CAI is 18k and 29k respectively on QR vs 25k and 50k on EY. Similar rates to IST.
Looks like long haul connections are quite overpriced.
All in all not a bad feature but nothing to write home about.