>>28894117Curveballs are objectively harder to hit the target with. Even if you get used to them, they're effectively like aiming at the dartboard at an angle. They seem to have smaller effective range as well.
You also can't time your throw as perfectly as you can throwing normally, since you have to keep the ball spinning and release it from a certain point.
In my opinion, it's much better to have a higher chance of getting a higher tier regular throw than praying to get anything more than a nice with a curveball, especially considering how often the game decides to cuck you out of the bonus due to the bug.