As noted in the previous responses, Folketrygdfondet is not involved in the screening process leading to Norges Bank's decisions on exclusion. Those decisions follow a comprehensive research process, as outlined in the previously provided links. The question seems to presume that Folketrygdfondet is responsible for assessing the quality of the research used to carry out this proceess. That is incorrect. Please refer to https://etikkradet.no/en/ for more information on the Council on Ethics' organizational structure.
Folketrygdfondet also uses an external service provider to screen all investments for ESG controversies.