From a personal point of view I therefore cannot see how my life could not be better in Dubai.
Then - and I mean this quite sincerely - why don't you just join, and make your life better? Why listen to people who are actually living there and working for EK, when you've got it all figured out from Europe?
Things are in a state at EK that they have never been before, with people leaving, and not joining. If I was on the outside considering joining, this would alarm me, and I would try and understand why. The reasons have been given ad infinitum on this forum. If you choose to believe your own calculations, that is indeed your own choice, and one you will have to live with. But as ekwhistleblower's excellent post says: at this point you still have a choice.
You will not have the choice to leave so easily, once there. Not unless you relish the 45K, 5 yr bond. And you will certainly have no freedom to make most choices after joining.