With dormant apple trees there is not safety in moving a ball, and it is probably advantageous to have a trees root system in one soil if you are moving a tree from a different soil, especially if the difference is textural. I move up to 3.5" caliber apple trees bare root by the hundreds but also grow some in inground bags where I move the ball (most landscape contractors prefer this because it’s what they are used to). Bare root apples, peaches, plums and cherries consistently rebound better from transplant than the trees with a soil ball. However, tree species without a fibrous root system do better with a soil ball- pears, persimmons, paw-paws, etc.
Species that do better BR benefit from the fact that you are moving a lot more root, but sometimes I cut back the roots to fit trees in 15 and 25 gallon pots and they still recover nicely.
Be BRave go BR.