Long Live the Confederation!
I think you're completely failing at understanding what Star Wars is about if you're worried about technical classifications and weapons values of it's starships.
Not only understanding Star Wars, but understanding what 'canon' means. Something that's 'canon' is something that writers/creators/etc. promise to stay true to in the future... it has NO OTHER MEANING THAN THIS. Something that's "a lower canon", and then defined as being something everyone can and will ignore in the future is *not canon* but rather a PR stunt to convince stupid people who think that such things matter regarding their purchase of a Star Wars book.