The tree doesn't really mind the house... it can ru it for years and not worry.
The pruning is for the house / human.
If the human wants it visually balanced for the human's sake, then sure small cuts. Less than 20-25% crown removal. Less is more, sometimes.
A horseshoe-shaped callus is from improper cutting. You've got good doughnuts that are from potentially larger than ideal cuts.
Girdling roots and buried flare.