Was the dream of my student [name withheld] about human annihilation at the hands of the Anunnaki an accurate prophecy of how they plan to eliminate human, by making it as brutal and painful as possible?

This is indeed a prophecy and also a recognition of ongoing events that take place within the Anunnaki culture. They indeed have festivals at intervals where groups of humans are subjected to extreme torment and then offered as food for those in attendance. So it is a double pleasure for the audience to see the lowly humans being tortured, under the control and at the whim of the Anunnaki, and then to partake of the human remains as a further enjoyment. This depravity illustrates beautifully who you are dealing with and the level of their thinking. It also reinforces the need for spiritual alignment because the depravity on display here is in sharp contrast to the highly advanced technological capabilities of this society. Having the advanced knowledge of science and the material realm does nothing to help them morally and, in fact, created problems for them all the way along in representing a kind of false God and false pursuit, to the exclusion of the spiritual being important. And this increasing neglect grew to the point of nonbelief and then less and less regard for life other than the self and service to the self. This will not be done in a wholesale way among humanity on the earth for reasons of expedience and practicality. The plan in mind for dealing with human population is more subtle and covert as it will facilitate the crowd management aspect and prevent unnecessary chaos which would be a nuisance to manage.