Why is the Books app so neglected and so feature poor?

Hi

Can anyone explain why the Books app is so barebones?

• It's impossible to tag several books at a time;
• If you do a search then you can't select the results and either move the books or delete or tag them as a bulk.
• The display options are poor and hard to view (icons too big or too small depending on your screen, list view hard to read).
• No conversion options
• No options to get metadata and covers