Wikidata’s Wikibase installation has been filled almost entirely in massive automated data inputs. That is probably why input forms were not exactly the first priority.

Our database will focus on researchers and regular users whose tasks will call for modules which they can get used to. The historian might sit in an archive with the task to register some 200 documents of a law case. The documents have to be dated, information about authors, the institutions, and addressees has to given on each document. The private user might want to give biographical information about a distant family member with the aim to augment his family’s genealogy. Both are used to input forms. They will never have heard of “triples”, their ideas of “properties” will be inappropriate, they will not be able to use complex Excel-commands in order to prepare an input via QuickStatements.

Quelle: https://blog.factgrid.de/archives/931