"It’s a way to supercharge the legal system. We take hundreds of cases on different legal questions and train AI on how the courts make those decisions, so users can run predictions on how the courts might decide a new case."

Bad example using tax law.  Little of tax decision-making is determined in courts.  More by inter-jurisdictional agreements and deal-making with the tax authorities. Look at the tax code.  There are more citations of "letters of comfort" from government officials than court case law.

AI won't help that much unless the international administration of taxation changes.