... instead of a key item?

Seriously SE, you keep introducing new items just to clog our inventories, right? Meanwhile our key items tab is empty.

We've been telling you this since you started doing that with the atmas (where it was "somewhat" understandable, even if the no stacking makes no sense) and the beast tribe items, and you keep doing it on every patch where you introduce new items. Will you ever start using the key items inventory for these things?

You aren't even consistent, as some other like the animus books are, in fact, key items. Why do you do that?