I disagree that the article confirms that HPV is the primary cause of cervical cancer. Unless "risk factor" = "cause."
Well, I can't help out someone who wants to stay ignorant.
HPV is the primary CAUSE of cervical cancer. The "risk factor" would be behavior that leads to HPV, but there is a causal relationship that has been medically proven between HPV and cervical cancer. So, I'm still not sure why you posted that lengthy cut/paste to me.
How about a better source to confirm it: The National Cancer Institute.
http://www.cancer.gov/cancertopics/factsheet/Risk/HPV
Q3: What is the association between HPV infection and cancer?
Persistent HPV infections are now recognized as the cause of essentially all cervical cancers.