No, not just you. They needed the Final Mix release to calm the angry masses. Too bad they didn't release KH2-FM worldwide. Even then, the Disney worlds have little cohesion to the whole.
And one of the oldest nitpicks on this board regarded calling the bonus movie a secret "ending". Years later we know it's just a teaser trailer. Feels more like FFXII trial art anyway, which they were shaping up at the time.
Be glad you played on Proud. You didn't need 100% Journal completion. Imagine how perturbing it is on Standard. On Beginner, even completing the Journal won't unlock it (for anyone considering it).
Guides and other contributions: http://www.esque.com/slr/gamefaqs/ FFX, FFXII, KH, KH Re:CoM, KH2, Okage: Shadow King, Secret Agent Clank