chinese and indians have steong in group preference and give each others a hand up in these situations. i used to work at munichre and it was happening literally there. i have met heaps of unqualified people who certainly only entered this way. regarding your question, it makes no sense they would have lack of pool to draw from. but most likely the problem is that they are unsatisfied with the grades of local students over gentlemans b countries transcripts and locals dont have internship experience. the biggest hurdle is always the first step even if nobody wants to admit that. and if you ask people at bmw, siemens, man etc. any degree that doesnt have girls inflating the grades are shockingly in the punktlandung direction of 4.0, and they dont like hiring that. maybe solve the issue at uni level, but that seems to not be possible somehow. until then people with degrees from easy grades and superficial internships places will get the easier access.
Germany