Joseph Shaw, the chairman of the Latin Mass Society of England and Wales, said that the motu proprio appeared to "undo entirely the legal provisions made for the Traditional Mass by Pope Benedict, and to take us back not only to the situation before the 2007 apostolic letter "Summorum Pontificum", but even before 1988, when Pope John Paul II -- who was canonized by Pope Francis -- described the more ancient Mass as a 'rightful aspiration' of the faithful. He also stated that "Traditionis custodes" was a "staggering document, exceeding our worst expectations. Pope Francis has completely undone the arrangements of "Summorum Pontificum" and crested a situation which seems entirely unworkable, banning the Extraordinary Form from parish churches." He also published a blog post on the subject on the Society's website.