If it is true, it seems like a terrible case of student abuse, as well as fraud and corruption in the ISCA review process (ISCA presumably still being the ostensible top computer architecture conference), and another highly damning indictment of graduate education and universities ignoring the mental health and safety of their students.
I am also feeling less enthusiastic about the relentless drive to publish at top conferences or (sometimes literally) perish. Conference papers are often rushed to completion and full of mistakes or questionable results, and it's also hard to review them adequately given time constraints and minimal compensation or incentive for high-quality reviews. I think CS and EE may need to de-emphasize conferences and try to improve journals.
It is well-known that the review process (and not just for ISCA) is simply broken and seems to be no better than random, but I had no idea that corruption played a part in it.