There are a certain portion of those who lived through V2, who idolise it, see it as overthrowing the Man, are horrified by some ad orientem efforts at New Masses, and adore Pope Francis. If I were to bet money that a good portion of the objectors are of that generation and outlook, I wouldn't lose the bet. However, the linked article does note that Bp Williamson suggested the priest should have been more clear in the original application. It has brought about needless problems for the project.