That's totally right. In our original dataset, 45% of decisions have no explicit titles splitting categories, so it's quite difficult to read them.
We classify each paragraph as one of "facts", "pleas", "grounds", etc. in order to generate a table of contents and help users read a court decision more easily. For example, one may want to directly jump to the operative part of the judgement: he just has to click on the "Operative part" of the table of contents, instead of having to read all the decision and guess when that part actually starts.
It's indeed intended to improve our users experience on Doctrine's website https://www.doctrine.fr (legal search engine).