Those figures make many assumptions.
Firstly, they assume that the flight will be full of passengers paying optimal fares. Throw in some discounted economy tickets to fill the void and some Skyward's upgrades into both premium cabins and it starts to look less attractive. The maths also doesn't include the revenue created by an additional 15+ tonnes of cargo that could be carried by the B777.
Secondly, while highlighting the profit, you fail to mention the costs. Higher overflight fees and the increased cost of landing and handling. Those 10 extra cabin crew need to be factored in, as well as many other obvious costs such as twice the engine costs in maintenance/engineers. Finally, the higher cost of purchasing and leasing needs to be addressed as this effects the bottom line too.
There is no doubt that this amazing machine can be economical when assigned to high density routes and into key airports. However, the question remains whether the number we have in service, and still to come, will be detrimental to the future of EK. Airbus will not commit to keep the production line open unless Emirates guarantees a future order. Emirates will not guarantee a future order unless Airbus commits to keep the production line going for a minimum of the next ten years. When aircraft cease production, not only do parts and spares become harder to source and more expensive, but the manufacturers desire to support such obsolete equipment is diminished.
Whichever way this standoff goes, one of the participants will be left with egg on their face.
Harry
Edited to agree with comment below!
Last edited by harry the cod; 5th Jan 2018 at 09:06.