1. They can save time of uploading because its just 100 kb of 2 frames video

2. They save uploading time

3. They are Japanese.

4. They save storage, which is very big deal, you don't how much big deal it is because its actually not that big of deal but the deal is it's good for environment.
Storing data in server takes so much of electricity,

5. They are human.

6. The Incharge of this seasons animation was Hent@i director so think about someone finally getting reputed job which he can tell others

7. Everyone makes mistakes ( but this feels more like intentional because there is limit how much someone can mess up )