When an admin makes a decision to delete an item it's currently hard to understand how the decision is made because Wikidata doesn't display the data of the deleted item.
This goes against the general spirit of having history pages that allow users to understand the changes that other users make.
That makes it hard to know whether different admins interpret the notability policy the same way or differently.
In most cases I think there's no harm in having the history of deleted items to be temporally visible and thus I request to make it visible.