I think that if you are trying to prove a point with events, the veracity of those events would be instrumental in the point that you are trying to make.
Even if the first half is perfectly fine, that doesn't makes the other half correct, or page by page, u know what i mean.
We are talking about at least a 2000 year old book collection compiled and translated, the possibility of that the original message has been long lost is very real, although if it's lost that would be quite detrimental to the veracity of the document, so may as well pretend everything is fine