While I was in the middle of that rant I was gonna mention the bigger the pot the more it takes care of itself, for sure. And yes putting liquids in with the soil organics is the fastest way to fry your plants, I think the best thing is maybe dont warn newbs at all, that's a lesson best learned when you suffer the consequences firsthand.
I've evolved to using liquid nutes in very, very small doses like a multivitamin with a meal, not a main course. And I've got two goals in mind: Offering them something to snack on if there's any dips in microbe availability, and also giving the ratio a gentle nudge to where it should be based on age. When I say light maybe I ought to say just how light I mean. Our tap is .8 and a feeding is around 1.1. I'm not feeding the plant, in just trying to keep it from cannibalizing itself if it happens to get hungry. So like I said, I do more feeding of the microbes than the plant. An approach akin to fertilizing the grass the cow is going to eat that you are going to make a tomahawk steak out of.