That Musk couldn't even get over the first stumbling block which is the statute of limitations, does not make the win any lesser. It makes it more decisive, since Musk now has to overcome that hurdle before even having a shot at the meat of the case.
I think parent probably means winning on merit or a sense of justice. As in won for a deserved reason rather than a technicality. The technicality here is exceeded the statute of limitations.
A win in any manner isn’t landing the same for observers as winning for a just reason.