Well it is the way it has been created. The US universities transposed their curriculum here, with the same criteria. A physician from cornell Qatar has exactly the same knowledge and training as one in New-York.
This is also the big challenge of EC, keeping very high standard and at the same time having locals reach these high standard, when the pool of students is clearly lower than in the US (in number of course, not quality).

And EC and Qatar University are quite different entities.