As I am able to tell, all non defensive-led troops still target the closest building to them that is not behind a wall. Placing down a jump spell simply temporarily removes all walls within the radius of the spell.
It takes a bit of getting used to, but if you want to quit, I have a feeling that you will miss the game more than the game will miss you.
I'd say give it a chance for the changes to grow on you. Sooner or later you'll find a farming army that will work to your benefit. Or you'll throw your device at a wall.

