I wrote Oratus selfishly, because I wanted to see, to experience what an Oratus feels as its set on its life-defining quest to earn a name, or die trying.
Dune isn't about normal humans going on an adventure, it's more like a space prophet starting a galaxy-altering religion while safeguarding civilization's sole source of drugs.
There's a balance here between Grace's growing peril and the incompetence of her pursuit that makes Ready or Not a great time that doesn't overstay its welcome.