Any product that has EDTA or chelated minerals will kill mycorrhizae fungi look on the bottle before you buy. Worm-like creatures can't survive in salt
They will not thrive or reproduce in soils with P levels over 10.
You are really blowing money using mycos with chelated nutes because the mycos feed the roots which feeds the plant, chelated nutes bypass the root system and feeds the plant directly, because plants use less food than we think the nutes that don't get used by the plant turn into salts, that's why you have to flush your soil every once in a while when using those kind of nutes.
Using liquid nutes with high P numbers makes them go dormant.
To answer your question Grow BIG will kill your your mycos it seems like it's not because the plants are growing but it's not growing from them it's growing from the chelated nutes instead.
Don't believe it don't flush your plants and watch how much salt builds up in, on, and around your pots.