So you STILL didn't read the actual information I cited...
What the book chapter is saying, is that we don't know if Hep B vaccines cause many different injuries (e.g., encephalitis and encephalopathy, seizures, transverse myelitis, optic neuritis, multiple sclerosis, etc.) because there aren't any good studies examining these potential adverse events.
"No studies were identified in the literature for the committee to evaluate the risk of [insert numerous diseases] after the administration of hepatitis B vaccine."
"The evidence is inadequate to accept or reject a causal relationship between hepatitis B vaccine and [insert numerous diseases]."
This isn't difficult to understand nor is this purely technical jargon as you appear to be claiming. What this information tells is that they haven't found any "conclusive evidence that these vaccines cause those conditions," because they aren't looking.
Imagine this conversation in the doctor's office:
Parent: "What are the risks associated with the hep b vaccine?"
Doctor: "Although professionals have raised concerns about hep b vaccination and [insert numerous injuries], there haven't been any very good studies looking at hep b and [insert numerous potential adverse events]... so we just don't know."
Parent: "Good enough for me, inject away!"
In reality, health authorities can't say one way or another if the hep b vaccines cause various injuries, and these products have been on the market for decades. Unfortunately, this is the case with other vaccines as well (e.g. MMR vaccine was described as having "Inadequate safety data," nearly 60 years after it came into widespread use).
You think it is hard to keep your child from being exposed to IV drugs or sexual assault?