It's a cute little game! I really like the idea of a hot wire game with indirect control and the presentation is adorable.
I do wish you had a little more control over the character though, especially in terms of horizontal movement. I think if it was possible to make reliable and somewhat precise throws, that would open up possibilities for much trickier and more interesting levels, where maybe the platform can't go everywhere, so you need to throw the character above an obstacle and catch them on the other side.
One option to do that without changing the physics too much might be turning the character into a ball and the platform into a shallow bowl like some of those BotW shrines.