I've mentioned it to a member on the forum. Selling living soils/super soils commercially is risky business with a lot of factors that could go wrong. Having a production facility that is sealed and contaminant free is almost next to impossible, maybe that day will come, but not right now. That's how the occasional batch will have fungus gnats etc.
I also feel there's a catch 22 with packaging. I don't know the real science behind it but I'm worried the bags are too sealed and don't allow the soil to breathe well. On the other hand, if you allow the soil to breathe well by punching more holes in the packaging you risk the soil drying out, another issue in itself, plus you invite pests like fungus gnats etc.
I think you'll need to accept a certain element of risk when buying a commercial super soil. The only way to avoid doubt entirely is to mix your own