On Twitter, Nick Donnelly wrote: "Bishop Schneider tells Raymond Arroyo that the signatories were wrong to accuse Francis of heresy because he hasn't made a formal, universal declaration of heresy. Though he admits he has allowed wrong teaching Very disappointing hair splitting." [ youtu.be/PH26z5uJlBQ 3:30 AM - 17 May 2019 ] In responding to Donnelly's statement, anti-Open Letter Taylor Marshall, apparently, is implicitly calling Doctor of the Church St. Francis de Sales a "sedevacantist": "I agree w Bishop Schneider. If you condemn Francis as “heretical pope” one must break communion with him. This is why I called the doc “practically sedevacantist”. It’s not formally sede but the natural conclusion is." [ https://mobile.twitter.com/TaylorRMarshall/status/1129334902153986050 ] Doctor of the Church St. Francis de Sales wrote: "Thus we do not say that the Pope cannot err in his private opinion, as did John XXIL.