Yes, it does.
No, that isn't accurate at all. Sasquatches stealing women and children is an old story among the aboriginal people. The story of Muchalat Harry, an indigenous man of the same era as Ostman, also exists.
I'm not going to deny that sasquatches are cannibals or not, because I don't know, but chimps and Homo sapiens are (and Neanderthals accused of) ............sometimes. Therefore, I would speculate that if sasquatches exist, they might be cannibals............sometimes. But the kidnappings might happen for other reasons. Ostman himself (I believe) opined that he may have been brought as a suitor for the young female.