BLP material normally refers to information that is contentious  Information such as the individuals place of employment or schooling is generally fine to include and BLP subjects are allowed to update this information based on their own sayso even without a source See WPSELFPUB  I do agree that the citations on this article could be better especially for someone as wellknown and widely published as Wiseman  But rather than simply deleting the majority of the article it would be better to remove anything that seems problematic negative information about a BLP and request citations for anything thats questionable by tagging it with  tags If no citations are provided the information can then be removed per WPV