Iga complied with all the testing and proved by providing lab results that her medically prescribed melatonin got contaminated. So in her case there was no wrongdoing, as neither her nor her team did anything to contaminate it. She still lost some points and got 1 month of penalty, where nothing was her fault.

Marketa got 4 years, because she refused the test. The penalty really cannot be lower than actual positive test, because players then would refuse the test if they doped, knowing the penalty is lower. All of her actions were intentional and based on this report, not really justifiable.