Did the Ahlulbayt(عليهم السلام) use insulting words?

بسم الله الواحد القهار

Sheikh Sayyed Mohammad Taqi Al-Musawi Al-Isfahani:

Among the traditions that indicate this is a tradition that Kulayni has mentioned in Usul Kafi through a highly authentic chain of narrators from Sadir As-Sairafi that he said: “I heard Abu Abdillah, (عليه السلام), say: ‘In the Master of this affair there is a likeness to Yusuf, (عليه السلام).’ “He said: “I said to him: ‘You must be referring to [al-Mahdi], but to his life or his occultation?’ 
“He said: “Then he said to me: ‘Which does this swine-like Ummah deny? The brothers of Yusuf, (عليه السلام), were descendants of prophets; they made a business of Yusuf, then they traded with him and spoke with him, and they were his brothers and he was their brother; but they did not know who he was until he said: “I am Yusuf and this is my brother.”[12:90] 
So why does this cursed Ummah deny that Allah, to whom belong Might and Majesty, can do with His Divine Proof at some time or other what he did with Yusuf? Yusuf, (عليه السلام), held sovereignty over Egypt and between him and his father there was an eighteen day journey; if he had wanted to let [his father] know he would have done so. But Yaqoob, (عليه السلام), and his sons, on [hearing] the good news, traveled the distance from their desert to Egypt in nine days. So how can this group deny that Allah, to Whom belong Might and Majesty, can do with his Divine Proof what he did with Yusuf? He will [come and] go in their markets and step on their rugs [i.e., enter their homes] until Allah to whom belong Might and Majesty, gives him leave in this matter; just as He gave Yusuf leave and they said: “Why, are you indeed Yusuf?” “I am Yusuf,” he said.[12:90]

Source: Mikyaal Al-Makaarim, Vol. 2 Pg. 424