Ooof, I didn't know that about SoS (they're...not good).
There’s a fascinating video on the history of Del Ret and modern fantasy.
Del Rey both made and destroyed the fantasy genre at the same time by forcing all authors to adhere to a very strict formula and then getting their books to sell even as far as in grocery store checkout lines.
A lot of conventions we think of as fantasy were nothing more than items from his checklist formula to get books to sell to who he decided was the target demographic.
Before him - Fantasy of the 1970s and prior was wild stuff with all kinds of thought experiments.
After him it starts to look like somebody’s D&D session logs.
Brooke’s novel SoS was originally old school - a magic distant future after the apocalypse with a blend if tech and sorcery.
For some reason he became the test case for putting an author through the wringer to see if the formula would sell… and it did… so Del Rey kept at it and even to this day the genre has formulas publishers expect writers to adhere to, though the specifics have evolved. They often evolve as anti-lists of opposites of last year’s formula.
We know in tRPGs that people tend to buy the settings that ate more familiar than the weirder ones and Eberrron is probably the most “off script” someone has managed to get and still be a top seller.
That said I do not want to see “Aberron; a world of Clanks”… ;(
I’d prefer to see those same authors stretch their creative wings again.