Devil's advocate, but watch out how you interpret the numbers.
Nowhere in the options was it specified that it was a "long" primary. There are a lot of people, especially beginners, who probably just ferment for 2 weeks and bottle the stuff. No secondary, and no long primary. I would count that as a third group completely.
And regardless... why does it even matter? Do you need to be on the "right" side here?
Can't we all just make beer and be happy about it? I've never quite understood the evangelist types that feel it's necessary to make others do it the same way that they do.