It seems like GSA CG completely ignores the "Enable Protected Words" feature of X-Spinner. This is extremely important as if it is not working it spins every single word. There are some words or phrases that we simply want to not be processed while spinning, like important keywords we're after or some that produce obvious illogical spinned words.
The "Enable Protected Words" in X-spinner works by setting them in X-Spinner and ticking the option: http://prntscr.com/eytf0v
I can tell that the bug is on the GSA CG side because the feature works fine in SEO CM and with it's internal test spinner as well. So it seems like GSA CG ignores that function somehow.