Cookie notices are only required when the cookie is "technically unnecessary"

[Ember-ruby]

As the addon store only stores cookie for technically necessary reasons (ie, not tracking), there is no need for a cookie banner.

Having a cookie banner when unnecessary will give users the impression that the website does track them

Source: https://en.m.wikipedia.org/wiki/HTTP_cookie#EU_cookie_directive

[patrickgold]

Ok granted you are right, however one could argue though that explaining each cookie adds to the transparency of the site...