I actually felt strongly about this when seeing the exciting early demo game play from the Frostline: the mountains feel spectacular, but its a huge anticlimax if you can kind of just furiously run on top of the mountain in a minute of sprinting. To exaggerate the point, it would kind of give a cool dog fighting type of dynamic where you can exchange your energy for higher ground but need to consider the difficulty and speed of the climb. Currently going uphill just feels very trivial and misses the real world excitement of "It will be an ordeal to climb but it will be awesome the higher I get"