I have an almost 4 year old son, this is the perfect sort of content to enable us to enjoy the Star Wars universe together. The themes are light-hearted and appropriate for this age range. If you've watched "Spidey and his Amazing Friends", this show will feel *very* familiar. It's low stakes, easy watching fun for kids.
As my son gets older, I can introduce him to the more mature SW content, but for now, this is ideal, with most of the themes focussing on things children around that age stand to benefit from - teamwork, sharing and inclusivity.
Some negatives from me - I would have liked to have seen more cameos from iconic SW universe characters aside from Yoda. The main villain also seems a little lame in the context of SW - for comparison, Spidey gets to battle against iconic villains such as Doc Ock, Sandman, Green Goblin and Rhino, our Jedi friends battle against a pirate kid.
As a final note, because apparently needs to be explicitly mentioned - not all SW content has to be consumable by adults, or have some sort of adult theme running through it. It's perfectly acceptable to have multi-generational content to attract varying age ranges to the franchise. If you're an adult looking for fresh SW content, carry on looking, you're not the target audience.