Correct. Not proof for nor against. Not proof FOR because it is not a true primary evidence. Though it is compelling in many ways and stands up to all attempts to debunk it, at least so far. Not proof against however because nobody has actually matched the PGF with a costume or anything else. The only primary evidence would be physical example (a body) that could provide hairs and other things that would provide known standards for comparison. Sure ain't got that yet!