Answer:
Comparing the hailstones with sugar cubes could have been more appropriate in terms of providing a clearer visual image for the reader. However, it would not have been entirely accurate as hailstones are not perfectly shaped like sugar cubes.
The description of the field being white "as if covered with salt" provides a more accurate comparison as it captures the texture and appearance of the hailstones after they have fallen. The use of salt as a comparison also adds a sense of harshness and bitterness to the image, which is fitting for a destructive hailstorm.
In summary, while comparing the hailstones with sugar cubes would have been more visually appealing, the comparison with salt provides a more accurate and fitting description of the aftermath of a hailstorm.