AY was downgraded from a 77W to an A332 though as well.
EY were running empty 777's most of the time, bet the downgrade didn't affect them at all.
Middle East had the same % increase last month (actual May numbers are lower than April)
I believe ET passengers are counted once and included in N American/Canada but even with that DUB-T/A traffic added over 16,000 with ET bringing around 10,000.
Off topic but now that EI is about to be sold. if EK were to reapply for US rights they would get them I suspect.