If you mention tab-completing, if starting with the detailest component it wonʼt work at all because of context search problems. If you press something like "alice<Tab>", in deepest-first order it will have to search the whole tree which could contain millions of entities. Worse than, some subtrees may be dynamically loaded during the completion request.

To mitigate senseless tree top listing, IDEs propose a bunch of means like context-related hints or unpacking forms like "o.e.t" to "org.example.test".