From the point of view of historiography, al-Baladhuris version is very useful.
From the point of view of historiography, al-Baladhuris version is very useful. It is, however, questionable whether al-Baladhurri was just being an unbiased historian reporting all the accounts available to him. On occasions al-Baladhuri is known to mention two accounts and say which one is correct. Nowhere in his presentation of the martyrdom of the Imam al-Husayn does he do this.
The use of the collective qalu makes much of the account sound very unverifiable, whereas the alternatives to the general account are given with full chains of authority. This makes them look more authentic. Thus accounts which undermine the stature of the Shi’i Imam are included in a way that seems to be intended as a correction of the general account. This in no way means that he is not sympathetic to the plight of the Imam.
He clearly is, but he is concerned to undermine the Shi’i conception of the Imamate, and this will be the case if he brings forward accounts which in some way undermine the stature of the man. A particularly good example of that is his report of the three options the Imam al-Husayn is said to have offered `Umar b. Sa'd and the Kufans. He reports that fully, but ignores Abu Mikhnaf's earlier report that no one knew what `Umar b. Sa'd and the Imam al-Husayn talked about.
He merely adds a paragraph of the third account, without giving it the authority of `Uqba b. Sim'an, the Imam's servant. In fact, he reports that `it is said' that Ibn Ziyad only asked the Imam to return to Medina. The very use of the words `it is said' implies that this should not be accepted as a truthful report, but rather should be considered as an unidentified and unlikely claim.