Xindi, Kzinti... When you've got a mouth full of fangs, or a swollen head like Krall's, you really can't tell the difference!
I haven't yet seen the new movie, but Kzinti is not pronounced like Xindi, even if it looks on the page like it could be. Kzinti has three syllables: Kuh-zin-tee. Xindi has only two: Zin-dee.Are you guys sure that Krall said Xindi? To me, it sounded more like Kzinti.