Weren't people losing their shit over only just the mechas? That it'd be GOTY?
Does the game lose that awe?
Trust me, these gifs do a fairly accurate job of conveying how great it feels to actually fly around in a Skell.
Also, I don't understand some of the comments in this thread that are of the opinion that having access to Skell traversal "ruins" the game. In fact, I think it's one of this game's biggest strengths as it allows the game world to reinvent itself over the course of the game: first on foot, then with a Skell that can transform into a vehicle but can only super jump, and then finally when you unlock the flight module so your skells can fly.
With each traversal upgrade the game's world expands itself to the player, it even gives you brand new parts of the world to traverse that are actually within the same areas you might have already explored and just couldn't reach before without a skell. Overall, it's refreshing to have the world so seamlessly expand itself to you in an 80 hour+ game.
Also, if you enjoy traversing on foot the game doesn't take that option away from you after you get access to the skell.