I never said what you're claiming I said, all I said was metadata isn't data insofar that it's not the 'data' you give to 1Password. I never said anything specific was or wasn't data.
And I'm not using an unusual definition of data, that begs the question. My point is just because it's about you, doesn't mean you own it.
Also, whatever the unusual definition of data you use that results in metadata being excluded is irrelevant (and it is unusual, look up the definition of data in any dictionary). The important part is that 1Password was not making it clear that it does not encrypt certain parts of the "information" you put into it.