Be sure to
read the disclaimer on the site you linked.
"The presence of any article, book, or document in these databases does not imply an endorsement of, or concurrence with, the contents by NLM, the National Institutes of Health (NIH), or the U.S. Federal Government."
Just because a paper was published and stored here, doesn't mean it's verifiably accurate.
Can you clarify what you're asking here? There is a metric ton of support from scientists globally about the
efficacy of vaccines. Your argument is that because people exist that doubt the science, the question is unresolved?
What transparency exactly are you looking for? What piece of the puzzle do you believe is missing, specifically?