KNF or a microbe boost should work really well with Remo. I usually do not mix synthetic and organic styles in flower, but my experience with incoculants tend to have good results. Major AG does inoculate and use synthetics, so its not really a bad thing.
I know some people look down or debate the efficacy of off the shelf inoculants, but I've verified activity with the inoculants. I use with a microscope and look at solutions in a wet mount. In your case the ferment itself is a way to verify microbe activity.
I'm sure we are all know about shelf stable yeast, that shows that specific microbes can be used as needed and a live culture is not necessary.
The bonus about a live culture, is the diversity. IF you add microbes from other sources like forest dirt you tend to have a better inoculant. The longer you let it go the better the inoculant if maintained properly.
Not to mention its entertaining to see more complex forms like ciliates and ameoba eat bacteria in a wet mount.
+1 for shelf stable microbes and live cultures. All good no matter the system.