Yeah, I mean, as much as I love it, the game was clearly not intended with the controller in mind and many skills perform differently. inventory, certain skills, and the map are all a bit harder to use with the controller.
that being said, if you are casting BEFORE a pull, I think you should be able to get them pretty much wehre you want. If you need to cast during a fight you’ve got less leeway on the exact positioning. Honestly, it may not be that much work. I’ve stopped using inquisitors seal, and haven’t used any of the damaging ground runes. If I put in a little bit of practice for a couple hours, I’d bet it gets pretty smooth to cast with a controller.