Sorry folks, this is a bug! There is a very clear check box in the page editor that says "Allow Comments" for the page (in fact it is the first check box in page settings). As the Default theme for Wordpress, Kubrick should honor this exposed setting in the interface OR provide some kind of feedback in the editor so you know it's going to ignore it.
I don't want to come off as too harsh here, but Wordpress has way too many issues like this. They really must be categorized as bugs because people are wasting hours figuring them out. I had the same thing happen with Page Order numbers—you have to drill down into a menu inside the Pages Widget and explicitly tell it "Pay attention to Page Order"!
Admittedly, I'd find the lack of feedback in the page editing UI a bit easier to stomach if I had gone into the theme preferences at some point and checked a box that said "Ignore Comments Setting for Pages" or "Ignore Page Order". Then if I got confused later, I could at least feel a little like it was my fault. But a fresh install of the default theme must honor all the parameters (or give a visual cue that it isn't going to).