I think yes and no, it always is multi factor issue.. I can find no other word than an equilibrium of multiple factors.. Algae species, Plant species and how well they can cope with the natural co2 equilibrium, placement. substrate contents and consistancy in relation to the plants in it, ferts (co2), both natural and or supplemented,life stock, water parameters, temperatur and light. In my theory these are about all factors i can think off having a degree of impact on plantgrowth, but likely forgot or just don't know a few more.
In this chain all links should be in a near perfect equilibrium and complement eachother.. And it is about impossible to give it a number or value to a dynamic chain of events like this.. One beeing off can trigger an event complementing certain algae sp. to grow.
And i came to this theory because i maintain about 6 bodies of water in 6 different conditions where i'm growing aquatic plants. 2 artificialy lit indoor tanks 1 indoor tank naturaly lit and 1 tank, a bath tub and a wooden barrel in the garden under the sun. And all 6 have it's own unique individual characteristics conserning algae issues and plantgrowth.. As far as i consider it algae issues, but they all have it, which every healthy water body should have. I guess because i'm not realy buzzy and to lazzy to worry about cross contamination all probably have the same algae spores introduced and roaming around. But still not all develop the same algae sp to obvious visual numbers. The wooden barrel is fishless, but contains daphnia etc. is crystal clear but as only one develops Clado algae, the garden tank with sticklebacks has a strange dust algae accumulating and even floating at the surface, the bath tub has =/- 15 goldfish and only develops aufwuchs. All 3 are unshaded for quite some hours of the day.
1 lowlight indoor tank which only has shrimps only collects diatoms and some green spot to the glass it never grows BBA it even dies in this tank if i throw it in. The other higher lit tank which was high tech for 2 years and the last several months low tech again developend BBA on the plants and hardscape and greenspot on the glass only. The naturaly lit indoor tank, stands under a roof window receiving filtered daylight develops BBA and greenspot on the plants.
I do not use algicides (glut) and i experience algae growth beeing pretty dynamic in a way with a cycle and comes and goes.
The naturaly lit indoor tank which actualy also runs on a planted sump i definitely have the impression light is a trigger because during the winter periode where intensity and periode is lowest and shortest it has less algae especialy less green spot.. In the summer light periode which is slowly raising up while the summer matures and always fluctating in intensity it has a dymamic algae population reacting to it. I noticed plants doing beter and fighting of green spot and bba with adding little extra phospate and potassium. So for this tank a increase of light seems to require and increase of fert elements to positively inflluence that chain of events again.
Funny is the outdoor water bodies receiving the highest light intensity with the longest periode never develop BBA nor greenspot.. I do not know but i have a hunch it could be temperatur beeing a trigger conserning BBA. The indoor tanks developing it have a steady temperature, outdoor this temperature is relatively cooler and fluctuating. It might be a tropical algae sp. i don't know.
Quite a long story to get to no conclusive answer.. I'm sorry, but for me that's the truth i'm in. What ever i experience, might be contrary to yours and the whole algae discussion reverts back to where we started..
You have to try things and go with what works and or keep trying till you find something that works.. Go with the flow.. We can consider an aquarium as an individual dynamic living symbiotic entity, it lives it's own lifecycle and we can only assist with giving it what we think it wants and needs on demand.
Enjoy the lucky moments when all looks perfectly in balance, but this never ever will be something static.