The word governance is McElwee's word inserted behind his first quote from Sosa in the article. The problematic quote from Sosa I am addressing doesn't mention governance:

"But if we are honest, we acknowledge that the fullness of women's participation in the church has not yet arrived."

Obviously the quote references governance and women's involvement in the hierarchical structures. Still, equating "participation in the church" with "governance" in a significant way is already touching the heart of the matter. In a democratic , civil institution, sure, I will grant that participation in the state  is directly correlated with having an active say in governance through vote, representation, advocacy and leadership.

The Church isn't a democratic civil institution though. Real participation in the Church has nothing to do with governing its temporal affairs. It has everything to do with drawing near to Christ who made it clear that worldly power isn't effective to that end.