In my opinion focal is the most excellent camera in Android .Since Xplodwild is the author of focal and he is also one of the most developer of omni ,why we don't use focal in omni ?
@XpLoDWilD
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It wasn't quite ready for prime-time. Before the Focal relicensing incident, the plan would've been to finish polishing it within CM. But when Cyngn tried to forcefully obtain commercial rights to it using their CLA (fortunately, the AOSP CLA which both Omni and CM use isn't that powerful and doesn't allow you to relicense GPL works), development stopped for 2+ months and then we all became busy with Omni itself.
I think eventually xplodwild decided he'd be better off rewriting most of Focal rather than polishing the existing codebase, but he's been very busy with other stuff lately. Maybe he'll have more time once this semester of graduate school ends.
And we don't use CM's camera. We use AOSP camera with a very small number of CM cherry-picks.
So pretty much the answer is "because we haven't had the time to replace it"