Hello Vincent,
I did a separate post on this topic, as per @ rjakse request on this topic : Questions about options in *Filter Streams Converter* and possibles typos ? (In XWiki LTS 15.10.11) - #10 by rjakse
But I doubt my employer would agree that I do more than bringing suggestions, which don’t take long to write, during work hours.
Maybe would I do it later in the coming months in case I decide to install and use XWiki for a benevolent project. (No promise, though, as I am planning to start a new course).