Actually, the fact that pilots are leaving emirates does not make it a bad place to be. As stated above, it indicates that it is a job with a finite time span at the moment. Most people will eventually get tired of the crap, and many long days,weeks,months and years. Most junior pilots will benifit every time a more senior pilot leaves.
There is a stage in your career when doing maximum hours on a great big shiny aircraft meens more to you than all the little things that constitute crap. Come to the gulf, enjoy it while you can, but be prepared to accept the fact that you will not enjoy everything or be here for ever.