Actually, based on what they said, I’m not even sure they could detect any number of cancers greater than statistically random.
Compare this to the chickenpox and shingles connection. It is very obvious. Likewise Human Papillomavirus (HPV) and cervical cancer. Very obvious. Hepatitis and liver cancer.
There is a less strong connection between Epstein Barr Virus (EBV) and a few different types of lymphoma and nasopharyngeal cancer. Only a small fraction of those who get EBV will get cancer.
Human T-lymphotrophic virus-1 (HTLV-1) and Human herpes virus 8 (HHV-8), have a vague connection to some cancers.
Otherwise, years ago there was concern that the herpes virus could cause long term heart damage. However, further analysis put is so low on the list of contributing factors to heart disease as to be almost incidental.
Lots of people who are HIV positive develop cancer, but there is no direct relation with the HIV itself. The cancers are because of their weak immune system.