a few counter-points:
1. FFVI and FFV were both easy. No thinking involved, maybe a little strategy. Essentially "find the best combos and win" for FFV. Only truly difficult parts were a few bosses. FFVI speaks for itself? My friend finished it in 3 days (no cheating), first time playing it. If you know the standard swing of things in RPGs, you can rip through FFVI with little challenge in some places. The only "difficult" part is sitting in the forest for hours on end to get strong enough to take on kefka.
2. Last hour? Xenogears took me 40 hours, 15 is in the middle of the story at best. Did you watch Memento? It's a story telling technique, don't tell me you haven't liked any stories with major twists and revelations towards the end.
3. Again, I state that it was one of the first RPGs I've ever tried at a young age and it was difficult to me. Much more difficult than FFIV which I played through just fine at the time. Lufia II did have a few hard puzzles where I got stuck, at least to me in 6th grade, you are obviously a puzzle master! Bow down to the puzzle master!
I don't know what I'm talking about? Maybe I should play through FFI and Lufia II again, and maybe you should play through Xenogears.