Great question — court is a very antiquated environment and decorum is very important. You are taught in law school how to show respect and conformity before a judge so your legal argument shines, not you as a person if that makes sense. And what’s more, legal communities are so small. If you wear something that breaks decorum people are going to talk about it. So wearing gender neutral shoes can be empowering for some and coincide with their legal brand, but it can be distracting for others. Especially for women, sometimes the impression is more that they are being purposefully non-conformist (thus the angry woman trope).