There is no mention of IF they found a connection between "genes encoding the bacterial membrane component lipooligosaccharide (LOS) in GBS-associated Campylobacter jenuni." in this woman's blood.
Or that she actually had a Campylobacter jenuni infection at all. She gastrointestinal symptoms, "Mari Tardiff, had already been hospitalized with GBS, following the onset of acute gastroenteritis after consumption of the milk."
Was she tested then for Campylobacter jenuni?

Try reading again and asking some questions...

"The causal link between Alexandre Eco Farms Dairy and Mari’s illness was so clear, and her injuries so remarkable, that the physicians that treated her published a report on her case in the medical journal. “Investigation of the First Case of Guillain-Barre Syndrome Associated with Consumption of Unpasteurized Milk – California, 2008.” Amy K. Earon, T. Martinelli, W. Miller, C. Parker, R. Mandrell, D. Vugia. The authors explained the laboratory methods used in investigating Mari’s illness:

We reviewed the patient’s medical record and interviewed her husband to assess her symptoms and exposures. We used polymerase chain reaction (PCR) and multilocus sequence typing (MLST) to test a six-week old unpasteurized milk sample, obtained from the cow leasing-program and partially consumed by the patient, for genes encoding the bacterial membrane component lipooligosaccharide (LOS) in GBS-associated Campylobacter jenuni.

In addition to the DNA testing, the authors also tested Mari’s blood for anti-bodies to GBS. The authors then explained that the PCR and MLST testing of the milk detected Campylobacter jejuni gene. In addition, the blood test was positive for anti-bodies that indicated the presence of GBS. The authors concluded, “Combined laboratory and epidemiologic evidence established the first reported association between GBS and unpasteurized milk consumption.”

Always challenge medical authority, they are frequently wrong and tend to hide the truth.

This seems suspect...

That said, I would not recommend the drinking of raw milk to every person.

My personal assessment is (disclaimer: I have no scientific basis for what follows and it is opinion only) that the bacteria present in raw milk can make people sick who have not been previously exposed to such organisms. Let me explain.

When I travel to foreign locals and go native eating and living amongst the population, I will sometimes suffer a bout of gastro-intestinal discomfort due to exposing my system to bacteria that I have not previously encountered. The bacteria, while benign to the locals, will wreck temporary havoc with me while my system adjusts to the native environment and builds an immunity to these new organisms.

Likewise, drinking raw milk from a farm when you do not live in the vicinity or do not have a history of having lived near or on a farm is dangerous. Don't do it.

Unfortunately, a large portion of the population has been raised in situations where they have not had the exposure to the myriad of bacteria present on a farm. Most farmer's could drink dirty water in ditch in a pasture and suffer no ill effect while other people would be sick for days.

The Inuit eat raw fish, buried in the tundra in seal skins left to ferment. While this dish would keep most of us up all night the Inuit survive and flourish. This is a result of genetics, environment, lifestyle and culture. I consider raw milk likewise. Unless you own the cow and live the lifestyle, you are needlessly and dangerously exposing yourself, your family and your guests to harm.