Hey, @mpkross!
First of all, thank you for playing Blimp! I'm glad you had fun! (:
About the aiming, I totally understand your point. It was a game design decision for the Jam but maybe in the future we'll enable the aim! One of the improvements we wish to make is to actually have a small close-preview of the path before launching (similar to whatt games like Arkanoid do). What do you think?