It will do no good to call the FAA or the local FSDO. Is EK in compliance with the set forth FTDTLs of the GCAA? Yes. The FAA audits the GCAA from time to time and they have found them in compliance to whatever standard has been set by the FAA. Secondly the U.S. carriers flying into DXB only have 24 hour layovers after 15 hours of flight time. Yes, they are not flying 92 hours but that has nothing to do with a rotation and it's rest before and after a ULR.
The carriers outside of the U.S. do not have to adhere to U.S rules and regs with regard to things like this. Remember "foreign" carriers were flying into the U.S. with over 60 year old pilots at the helm before the FAA changed the mandatory retirement age limit.
And lastly, it may not change the max monthly rate, BUT, it allows more work days like PPCs, CRM, SEP and squeezing in a ULR during a leave month. It allows more flexibility in rostering you. Looking at it in another way 60 captains and 60 copilots required for a 30 day month. That's 120 work days now available per month in the overall manning. And we all know, there are plenty of work days with zero credit.