Yes, Schwartz was a very precise editor, with a lot of attention to detail.

I recall in one Schwartz interview that he was very proud of how his books never had any typos or mis-spellings, and that the frequency of such errors in books by other editors really annoyed him.

How 'bout editor Jack Schiff, who preceded Schwartz editing the BATMAN and DETECTIVE line in the 1950's and early 1960's, with some truly bad storytelling, taking Batman on all kinds of unlikely time-travel and science fiction adventures to other worlds.

Schiff also tried to create a pantheon of goofy supporting characters for Batman like Superman had under Mort Weisinger, such as Batwoman, Batgirl (the first one), Bat-hound, Bat-mite, etc, an endless array of unsightly Bat-suits for different missions and (my favorite... ) the Flying Batcave !!

Most of which has been mercifully forgotten from continuity in recent decades.