An example of a mistake Ken's RPG will never make:

Original Firefly script from "The Message":

"Because the technology's not ready.
The blastomeres are unapproved.
Likely unstable. You're not just a
carrier -- you're an incubator. "

Serenity RPG:

"Cloning and growing organs for those needing transplants has become a viable practice in the Core, but Blastomeres - a recent Newtech creation - could make this practice obsolete." ... "blastomeres are longer-lasting, and are more durable than normal human organs"

Blastomeres are not organs, they're cells.

If they'd bothered to Google "blastomere", they would have learned that blastomeres are cells produced by the division of a fertilized egg. This implies that fertilized eggs are used to create the organs (likely the fertilized egg produces stem cells, which are harvested to grow organs). Assuming the cells have been modified to grow faster, the modified cells are "unapproved" (kind of like stem cell research in the US today, except for a very few lines), and thus, illegal.

A perfectly normal medical manufacturing procedure twisted into "Newtech" thanks to a lack of research. MWP forgot the cardinal rule of Firefly - 99% of it is ordinary, everyday stuff. Look for the everyday explanation before the "whiz bang".

Fortunately, Ken has a large stable of science, engineering, and social science fanatics ready to pounce on the slightest inaccuracy. (and mostly before things go to print, rather than after)