Oh, so a thing can have all of the properties of a blockchain, but because it doesn't suit your narrative, it is not one? That doesn't seem like much of an argument to me.

Tell me, which of the conditions of the flow chart does git not satisfy? And better yet, which technical property of a blockchain does git lack that disqualifies it?

You seem to be trying to define blockchain as "a thing without a use case", and then when presented with a use case say "see look it has a use case! it's not a blockchain!".