pin>Because her passive specifically makes it so that she shouldn't (Logic Reason)
Don't agree with this one. It makes it so that when she enters a movement command after attacking, she jumps instead of walking. Nothing in that implies that they shouldn't have to do this when moving towards an enemy target. Every other ADC needs to enter movement commands after attacking in order to chase. They have to make an effort to use movement commands between autoattacks. So does Kalista, she just gets more for doing it.
Because she has slower movement speed, so her passive should be automatic when chasing to keep her balanced with other champions ability to chase (Game-play Reason)
She doesn't have slower movement speed. When she is using her passive, she covers distance faster than other champions do walking, particularly if they have to autoattack while walking. Even if she did have slower movement speed when she was jumping than other champions do autoattacking and walking (she doesn't), then making it automatic wouldn't change that. It would still be slow, but it would just be easier to utilize the same slow movement.
Making it automatic wouldn't make her balanced relative to other champions because it doesn't give her any additional potential. She can already use fully manual control to chase with her jumps very effectively. If she is used properly, she chases better than most other AD carries because the jumping covers more distance in a given period of time than autoattacking in-between walking will. Making it automatic just makes that easier. It may lower the gap between unskilled Kalista players and highly-sklilled Kalista players, but it wouldn't actually give highly-skilled Kalista players any additional potential.
All this would do is make it easier to get the same amount of potential, and I don't think she needs it to be easier.
