No. That would have been against their remit to find those things absolutely categorical.
Summarizing the same event from the viewpoint of different individuals, M/B said that one of those individuals held those views which for **them** was categorical. When, then, viewed synoptically with other viewpoints then:
The "even if" comes from actually reading the full text, rather than cherry-picking one of those viewpoints, which is the opposite of viewing it synoptically. You are viewing it as if that viewpoint was proven. M/B are saying that even-if those things are proven, that still is not enough.
This is about the 20th time on this thread alone this has been explained. Fortunately people can read it for themselves.