If a NO is not in conformity with liturgical law it is "illicit", just as they say SSPX Masses are "illicit". Therefore how can they criticize Catholics who go to "illicit" Society Masses when 90% of all NO Masses are "illicit" due to aberrations in following the NO rubrics?
"Licitness" does not affect the Mass fulfilling one's Sunday obligation anyway, according to Catholic Answers themselves!