I find the "why" points not appealing to me (maybe I know my way around git too much), but one:
"Partial clones
Commutation makes it possible to clone only a small subset of a repository: indeed, one can only apply the changes related to that subset. Working on a partial clone produces changes that can readily be sent to the large repository. "
"Partial clones Commutation makes it possible to clone only a small subset of a repository: indeed, one can only apply the changes related to that subset. Working on a partial clone produces changes that can readily be sent to the large repository. "
OK, now I am interested.