@TalhaAhsanEsq It's a very good question, and a complicated one. For starters, the Islamic manuscript tradition is vast both in terms of timespan and geography. As Dr. Shamsy points out in his latest book, the Arabic manuscript tradition is the most vast of any language in the world.
Why are some things given more prioritisation for publication than others? Why are some aspects of the tradition more emphasised than others. There's no single cause behind it.
And there is not necessarily always a sinister motive behind the suppression of some things, but sometimes there is...
It is true that the Hanbalis and Ash'aris had a very contentious and at times acrimonious relationship for much of their history. In later centuries, a sort of truce was reached. Al-Zabidi has said similar in his sharh of Ihya about the identification of 3 groups as Ahl al-Sunna
It seems that these truce efforts also spawned a number of works seeking to mediate the Hanbali-Ash'ari dispute over the nature of Divine Speech, the most contentious of issues between the two camps. A couple of these have been recently published.
