By your logic tho, then my tank should have been fine. Started with dry rock and seeded with bottled bacteria and then added liverock from existing systems and after months of time it never settled into an established biome cables of keeping corals alive. But all it did was let any pest that happened to get in run rampant because there was absolutely no competition. Things reach balance when there’s a creature for every niche, if you don’t have that then things get out of whack quickly.
You do you, but I’m fine with saying I failed on the last tank, and have learned from it.
Thinking you know everything causes problems, maybe something you should take to heart.