Let's not get nichey, there's always certain fish or critters that need certain conditions let keep it to the 95%.
You missed the point altogether and it is why you refuse to even consider what @Edward
is talking about.
It isn't nichey, all tanks with flora and fauna have these equilibriums its just the aquarium hobby tends to ignore the complex details because it isn't a requirement for growing most plants, whereas for sensitive flora or fauna more care has to be taken.
There is a complex equilibrium of Bacteria, Periphyton, Microorganisms, Organics, Fertilizers, Oxygen, Light, CO2 that forms a healthy equilibrium necessary for healthy plants and an algae free tank. Water changes interrupt this equilibrium. Just because you cannot visually observe this interruption doesn't mean that plants don't have to adapt or that nothing is changing.
This is why when establishing a new tank, time is required to cycle through various undesireable products or stages (Diatoms, Fungus, Brown Algae) these occur as result of an immature equilibrium of Bacteria and Microrganisms among other things.
It is not as simple as healthy plants, excess/balanced ferts, balanced light, increase ammonia uptake by plants >>> prevent algae. Bacteria, Plants, Plant Roots, Microorganisms, etc. in equilibrium play major roles in breaking down/filtering Organics and other substances and forming a healthy equilibrium necessary to prevent algae and promote healthy plant growth.
If you go under this premise that algae spores take in ammonia and plants will take in ammonia first and faster to me it's logical how a tank full of healthy plants prevent BBA.
That is not an accurate or complete premise.
Algae spores(invisble) require only trace amounts of Ammonia which are present in undetectable levels in any aquarium with flora and/or fauna. Then mature stage Algae feeds on Nitrates afterwards(also present if trace Ammonia was present).
Everything else water changes, organic removal, good husbandry, etc all help, but they won't rid a tank of algae the way a continuous uptake of ammonia will from a tank full of plants.
There is no proof for the causation in that argument. A tank full of plants can have algae or it may not.
Plants are also not a requirement for an algae free tank. BB consume ammonia quickly in most mature tanks and consumes all available Ammonia as fast as it is produced. Bacteria colonies grow/shrink in equilibrium with amount of Ammonia produced. Algae blooms from Ammonia(if a tank is out of equilibrium or uncycled) are not to my knowledge correlated with BBA but rather other forms of algae.