I see nothing wrong with that amount of trace used for EI.
EI is assuming you have a max growth, or it is a non limiting value, much like modified hogland's solution is for hydroponics.
You start there and can reduce it if you have lower light, no CO2 etc etc, => common sense.
If you have higher light or not, and CO2, and you do the water changes, then nothing will build up either way, if you reduce the dosing to suit the tank, that will reduce the build up and perhaps you can skip a few water changes, but these routines both work.
PMDD on the other hand, was developed with low light and assumed that you have enough PO4 from the fish and tap water. So low light, low demand, good fish load and feeding etc, made the system work fairly well.
When you add more light, this means more CO2 and more nutrients, so the fish waste typically will not keep up.
A PMDD version of EI can be seen here:
Some find dosing daily suits their habits.
I'd suggest using less light and work on that and CO2, then focus on tweaking nutrients last.
Many folks , particularly new or intermediate spend a lot of wasted time playing with nutrients and not enough on the basics, balance the light/CO2, do routine care, aquarium maintenance.
Once you realize that, then things are much easier and simpler to resolve.