As a rule, it's the job of someone who proposes a theory to produce verifiable evidence to support it. See my references above for some earlier attempts at "explanation," mostly rather outdated now, but at least in the Gilchrist example based on close textual analysis.

Anybody can announce that they are Knights Templar and part of a continuous tradition, but I doubt if they could prove it.

You might be right, of course; but as I've said, it's very unlikely indeed.