Um....

Isn't there some rule of thumb where some substantial threshold of popular regard defined it?

I mean I get if there is first principles derivation of a concept, but agilation is not that.

Agile is really a communal/socialist mechanism that is ruined the second management more than one later up injects themselves.

... Which is 100% of the time

Not really in this case, because the manifesto was put out there from the beginning. People's incompetence to actually look at a website and read 4 phrases and doing fake agile is one thing. Agile is another.