(Actually come to think of it, Sabine saying at one time that Weinstein's work is bad, at another time that professional physicists failed to engage with Weinstein properly--this is not a contradictory position, the former is a personal opinion and the latter is akin to an Enlightenment principle on how an institution ought to be behaving even towards dissenters and outsiders. Disappointing that the blogger doesn't seem to understand this and is using it simplistically as an example of Sabine being a dishonest science communicator)
Here’s a page giving some of his side of the picture and he includes the original Weinstein paper etc if you want to read it https://timothynguyen.org/geometric-unity/
[1] https://files.timothynguyen.org/geometric_unity.pdf