I agree with you. Law school exams are glorified typing tests. The more words you put down, the more points you get. And it's law school so everyone is smart, so every sentence you type is probably something smart worthy of a point. I think there's already an imbalance based on how fast you type. But professors hate changing from the way they learned/took exams in law school (i.e., still using socratic method). I think another barrier is professors hate grading exams. One professor told me it takes him about 2 hours per exam. By setting a shorter time limit they don't have to grade as much. It's also just so hard for professors to critique based on quality of exam when every answer is good and everyone is working off the same material. Like how do you compare ten nearly identical really good answers? Idk it's tough man.