it's more a sign of a country not being enable to ensure that there is an acceptable level of cheaters due to
1. corruption
2. huge disparity of outcomes depending on the post-exam access to further education
I hate such judgments passed on foreign nations. there are no such things as corruptions when speaking about foreign countries. Instead, they should be more accurately rephrased as securities not enforced.
to counter your argument, I would say that Harvard is not able to contain the number of cheaters at its university. Or the business schools are not able to contain the amount of cheating that happened in their education. we do not broad stroke such problems with single word terms.
like others have said, this system of internet blackouts is quite common in other countries as well. Some countries will even coordinate television programming to be different because children have to take exams during that week.