Despite the book version being a hefty 500+ pages, the audio drama itself is only 5 hours long. The reason the book version has so many pages is it's a script and not a book, this installment is meant to be listened-to. And it truly is a joy to have a fully produced audio drama with sound effects, voice actors, background ambiance. It truly is a reminder of how great audio dramas are, and they should be more common. 

As far as this story goes as an installment in the High Republic storyline, it's negligible. On one hand, I understand. They were trying a new format and didn't want to have a gap in the story if it didn't do well. But the result is a story that's not particularly relevant to the plot. Everything that happens is covered in the prologue of Cataclysm. There isn't anything that really stood out besides the proselytizing droid. There was a ton of potential there, but instead P3-7A is the butt of the joke and the interesting question of artificial life and the Force is overlooked. And of course his creator Keth Cerapath, is the young idealistic protégé that acts as the martyr to raise the stakes for the Jedi main characters.

I really love the High Republic story. I love the collaborative nature of the storytelling. But I do think The Battle of Jedha is lacking some of the charm of the other installments.