Since they crashed in our introduction phase of the game, we just see fire in the sky(which only our character saw it). Only in the Gridania intro, there's a crashing ship and it leads us to our end-game zone ;D
I think for the beginning of this spectacular new world, they're still making the approach while having us witness the changes as they go. I think that's pretty great and it's wonderful being part of the improvements before all this is official for retail. Imagine how long we're going to use these zones and how many more areas within the zone will be added and when the "Mor Dhona" region will officially be used as end-game content. It can't be said for sure but it's sure a high-light in the opening movie.
One thing to remember is that FFxiv was rushed for the PC retail. The Tanaka vision on FFxiv was scrapped( a shame) and a whole new vision is making the standard mark. The planned out road to FFxiv has already been laid out and SE is working in and out like Amazon.com.
Where talking about a MMORPG taking place in a theme of high-fantasy. There can be a scientific explainable reason for everything. "Bad zoning/ good zoning, IDC. STFU and play the damn game you nerds." While this matter can be over-looked, it can rise a brow to creativity in zone design and making us awhile of zone change.
I would like to know for sure if I was about to zone into another totally different area with different scenery. A change in terrain and vegetation could be that indicator but all this serves as friendly functions not as important game mechanics. Imagine newly implemented zone in the future, how will we know when and if we're approaching a new place and time? I'm not entirely sure if I saw this when zoning for the first time but I'm willing to chocobo around to see but the zone never changes, you can probably see in the distance where the change is...
High Fantasy is Fantasy without scientific explications IMO. Walk through a tunnel from a forest into the snowfield and make a snowman (or maybe a snow-goblin)!