Once the historian wants to step into research and analysis...
Once the historian wants to step into research and analysis and then make a judgment about the interference and non-interference of Imam Zayn al-'Abidīn ('a) in the tragedy of Harrah, he would be facing all the above questions and should have answers to all of them, presenting authentic reasons for every view he adopts.
The simplest analysis is to regard the Imam's ('a) silence as his impartiality in this event and view that impartiality as a result of his abandoning duty and path of martyrdom and resistance, and his compromise with the rules in order to survive. But such an analysis would be made by an ignorant and biased person, as the past personality traits of Imam Zayn al-'Abidīn ('a) does not validate such an analysis.
Despite his exhausted body due to the wounds from the heavy chains fastened to his body and although being surrounded by Yazīd's troops and supporters and in a land where 'Alī ('a) has always been cursed, he stood up before the arrogant Umayyid ruler and cried out: “O Yazīd! Are you threatening me to murder?!
Have you not learned the fact that being killed in the way of the Truth is an eternal success and a tradition among us and martyrdom is a dignity for us?!” Did the Imam ('a) not utter these words after the tragedy of Karbalā; was he not carrying the deep wounds of the memory of 'Ashūrā on his body and soul when he expressed himself so courageously?!
Was it by any means possible that such a free-spirited, brave, and noble figure would give up all those highly influencing and chrished memories within several months and come to compromise and lip-service with the murderers of his father and their accomplices and become indifferent to their defeat and destruction?!
Was it not the case that whenever the eyes of his holiness were cast on fresh water, he would weep to keep alive the memory of the severe thirst of the martyrs of Karbalā and the tyrannies they suffered and the gravity of the crimes committed by the Umayyids, leaving deep impact on the souls and emotions?
Was he not the one who in his supplications would breathe the love of the Prophet's (s) descendents into the souls and hearts of the monotheists, and this way would trouble the Umayyid's slumber? Was he not the one whose brilliant thoughts and steadfast personality inspired such great warriors as Zayd b. 'Alī b. al-Husayn and Yahyā b. Zayd who bravely fought against Umayyid injustice and oppression?