University Level English?

Ok, I am not here to brag about my English competency but can you imagine the future human resource originated from public university which is not good in English? Look at the following notice:

One of the Universiti Malaysia Sabah graduation requirements is the English competency level of at least Band 3 of Malaysia University English Test (MUET). Personally speaking, Band 3 is not the hard for a university graduate. Will you hire someone who can’t even achieves the English competency of high school levels? Comparing with other English proficiency tests, such as SAT, IELTS and TOEFL, MUET is considered as the low passing test. The scores are adjusted to quite significant low par compare to the international English proficiency tests.
Well, that may sound like I am discriminating certain population, but my the point I try to emphasize is the perseverance to improve language proficiency level. It is an undeniable fact English is widely used in almost every corner of the world, why certain population is declining to improve English proficiency?