On the flipside, if the language is too casual you’d end up with people winning cases by being popular and snarky.
Part of the reason why Trump’s cases have such a high turnover of lawyers. His antics just don’t amuse a judge used to professionalism.
Not saying you don’t have a point. After stuff like bees being classified as fish in California to protect them. It’s clear to see legalese has gone to far.