Jean de Montaigu de Brabant - Remove parent-child relationship between duke John II of Brabant and this profile because of hypothetical basis?

Given the hypothetical character and the many incertainties given in the (French) text of the description of this profile, shouldn't the link with hypothetical parent duke John II of Brabant be removed? There does not seem to be any concrete proof for this relationship, it all seems to be purely hypothetical with at least 3 alternatives for descendance from the dukes of Brabant given as well