Disney announced this short a week before or so, so my expectations were not high from the beginning. They want to celebrate 3 years The Mandalorian but what they did is not satisfying. They should have released Season 3 on this day, that would have been a perfect "celebration".
Well, the short is nice, it is a corporation with an anime studio. Animation is fine. Dust bunnies are from My Neighbour Totoro. Watch that anime instead of this short. It is worth it.
So I think it is better than nothing but it never fulfilled the potential of such a milestone for Disney Plus. Hopefully the announce the exact release date of Mandalorian Season 3 soon.