Maybe despise was a little harsh. Let me explain. And this is all pertaining to living soil.
It doesnt really matter what you feed them as long as its a recommended LOS input, and its fully broad spectrum, so within reason you can feed organics pretty easy.
What matters is the myco fungii, because it oversees the management of what microbes mine what foods, and where, and it does it well because it takes orders directly from the plant, aquires it from the correct microbes and gives it to the plant. The plant in turn pays the fungii in sugar, and the fungii pays the microbes with sugar.
If you introduce foliars the plant says "Cool, I don't need to pay the fungii for say nitrogen, because you are using foliar fish ferts."
It works really well but the fungii stops paying the nitrogen crew and the nitrogen crew goes dormant. Then the soil starts to go out of balance.
Now if you hit your plant with 1 or 2 foliars over its life to perk it up then certainly do, once or twice won't piss off the myco, but don't expect high brix unless you foliar forever and be ready to foliar whatever counter measures you need to apply the rebalance the soil, if you choose to ho the foliar route.
It can totally be done but the despise part is purely personal to me, I am lazy and busy. Foliars are a lot of work on a strict schedule. For that reason I despise them. Plus myco works better in LOS.
Absolutely no offense towards foliar feeders here, they are very effective at delivering whatever it is you are feeding.