Perhaps it's a question of the appropriateness of a business model that: sets a release date, continues to blow by it, and thinks that consumers should feel 100% comfortable with that business model / the product when it finally does release. The implied manufacturer's care and thoughtfulness in its product, or lack thereof, may be reflected in the above model.
Or perhaps an analogy might work: the Space Shuttle reportedly had all the bugs worked out of it until it first blew up, and then melted a different time. I know, the Duet's not space travel, nor has the Duet landed.