Whether Anya's resignation was real or fake wasn't important to Miles or Dane at the moment. For the woman who served in the secret service, as soon as she gets a hint about talented students abruptly leaving the country, she would be quick to catch up with the scam in the college.
In case, Anya hears about the missing cases, she will easily understand the depth of the crime. Then she would definitely alert the right higher authorities. Then they will be hunted down.
Gianna was the best choice for them as she didn't care about the poor students and she didn't like to deal with issues that would hurt the image of the university. Anya was daunting and shrewd. If not Dane, Miles Johnson was well aware of it.
For a moment, both men considered staying low and doing nothing at the Imperial University but other colleges. However, another thought crossed their mind, what if Anya was on a mission to hunt them down?