Firstly, EK doesn't train. It checks.
MM has seen to that.
Secondly, JAR licensed Airbus pilots are happy to be checked and kept legal by GP, a non-flying TRE in the CAE simulator here. Why not then non-flying TREs at EK, that can be paid a F/Os salary?
Thirdly, why is it that 'trainers' who are less productive than line pilots feel they should be paid more? Is more money the best reason to become a trainer or should they be genuinely interested in training?
Finally, training, like First Officers and CRM, are regulatory requirements that are costly and burdensome to the airline. The elimination of First Officers will enhance the bottom-line and negate the requirement for CRM further improving the company's financial performance. Not only that, once a Captain is deemed qualified there should be no further need for 'training' thereby eliminating the department altogether. The result would be a much cheaper 'mini-department' that could double as a petting-zoo for monkeys who could occupy the right hand seat for amusement on long flights and generally perform to a higher standard than some of the muppets currently being hired.