You know...I've been thinking about the Nutribalancer... It was Harvey Ussery that said he was rethinking even using it...or at least reducing it to see what the effects would be:
It is definitely a MINERAL ISSUE as the Nutribalancer or other additives are the mineral component of a grain-based feed.
I KNOW FOR A SCIENTIFICALLY PROVEN FACT that lacto-fermenting makes minerals more bio-available from grains. Calcium is one of those in particular.
That's one reason that I have quit putting any calcium supplement at all in my feed (except what comes in the Nutribalancer which I am still using for the time being). (I do offer a calcium source on the side but not much of it is eaten...)
When commercial feeds are made, they're based on how the animals are doing with the nutrients present. Of course this is using grains that have not been fermented and are sometimes pre-cooked and extruded into another form. The pre-cooked ones lose the enzymes as well that help us digest and use what's left.
Even good whole grains that haven't been fermented have the anti-nutrient factor so there is definitely a need to supplement those kinds of feed.
BUT....the good news is...
Most of us have chickens that aren't locked in tiny spaces, eating only commercial rations. And some of us ferment what we do feed... And most of us let our chickens range and get the extras...and most of us have garden veggies available....And....
You get it!
So...I say... YES. I do think you could

But even if you don't, the other feeding practices you follow are already awesome !