Part of the issue was that a lot of the Kickstarter material added to the book should have been in Miracles of the Solar Exalted rather than the corebook itself. Eight elementals, nearly a dozen animals, eight Martil Arts stylels and half a dozen spells add up yo.Yeah, even if I thought I’d run it again, there’s no way I’d get a hard copy.
A core rulebook plus a Solar book would have been better, tradition be damned.
A big reason it wasn't split as a note is also there's not really a natural split for Exalted. Two books also don't just increase the workload a bit, but by a lot. Part of the huge delay wasn't something on the writers part but the book being in layout for a god-damned year.