Yes, character and voice actor deserves a break, in other words, just for fun, but also feels like trying to add something beneath the middle of the episodes.
For example, how Subaru confuse as Apple in real world (Ringo) and Fantasy World, Appas (Ringa), Beatrice hate Subaru calling her Loli, and just small random stuff in the whole episodes.
Other than that, is just for your pleasure 3 minute break time after done doing voice acting the main series.
Indeed its funny but not from what we expected from short video.
(Subaru is a car)
+ Break time
+ Still the same voice actor
+ Trying to blend main episodes for extra info.
+ Just for fun anime, nothing more.
( Sorry but how to review a short one with a short video? :( )