I see three options for this, two of which seem most pleasing. 1: They could add animations to the ability. This gives the player the feeling that he/she is not getting off of their chocobo to see a single line of text. 2: They could simply allow players to use the abilities on or off of their chocobo. I personally would prefer the animations for added visual integrity of the game, but the second choice isn't a bad move either.