Only if you want a factual answer that can be depended on.
If you just want a text bot that makes statements one word at a time we can stop throwing 100bs at this sector and some marketing departments need to come in this weekend and redo a pitch or two.
For commercializing generative AI tools, which needs to happen in order for all the investment to pay off, it absolutely does.
In an adversarial industry like law, where there's often another party actively invested in challenging your work, high error rates in source material translate directly to high risk of failure/rejection in a case or claim.
Putting numbers on the failure rate for current products helps the industry understand whether those products are reliable enough yet and what degree of oversight they require.
