The OP isn't actually convincing, because it doesn't really support WHY one should believe those statements made. But without the support, the statements can be true nevertheless.
Here is the support for this. A quote by Pope St. Pius X in 1912:
“When one loves the pope one does not stop to debate about what he advises or demands, to ask how far the rigorous duty of obedience extends and to mark the limit of this obligation. When one loves the pope, one does not object that he has not spoken clearly enough, as if he were obliged to repeat into the ear of each individual his will, so often clearly expressed, not only viva voce, but also by letters and other public docuмents; one does not call his orders into doubt on the pretext – easily advanced by whoever does not wish to obey - that they emanate not directly from him, but from his entourage; one does not limit the field in which he can and should exercise his will; one does not oppose to the authority of the pope that of other persons, however learned, who differ in opinion from the pope. Besides, however great their knowledge, their holiness is wanting, for there can be no holiness where there is disagreement with the pope.”
St Pius X, to the priests of the Apostolic Union, 18th November 1912, AAS 1912, p. 695.