Here's my take on Articles 5 , 6, 7 - its all pretty straight forward really:-)
Article 5 - Wynne complies but must ALSO comply with Article 7 (which references Article 5) as he has also "acquired a new nationality" - He does not Comply
Article 6 does not apply: it states "is eligible to represent more than one Association on account of his Nationality" - His NZ nationality only allows him to represent NZ Association...His SA nationality would only enable him to represent SA.
This Article is for the 25 FIFA Associations where Nationality of one Association also allows you to represent another Association
eg Tahiti / France
Faroe Islands / Denmark
Aruba / Netherlands
He is not eligible......next