Kitchen science is all ordinary bonsai & gardeners need to act upon. The gory details that serious scientists need and love would go over the heads of us ordinary folk anyway. My own formula for potting soil uses 50% by weight top soil as sold by the bag at any big box and 50% pine bark soil conditioner plus additives to encourage the microbial population, so all my trees are already immersed in a full range soil residents. I will throw a handful of old soil into the mix now, too, because of your article. Thanks!
Ramping up the balance in my pots was done with very light mixtures of plant-available sugars like glucose (10g/L) or more complex nutrients like Light Malt extract (2.4g/L) applied once. But that throws off the balance; bacteria have an easier meal with these solutions compared to the slower fungi. They make the soil more acidic and in excess they even make the soil anaerobic due to them releasing co2 and forming sludges. So there's a need for lignin and cellulose too: bark chips.
Right now, I think a marshmellow or two doesn't do any harm either. They are slow release.
But overfeeding these fungi makes them independent, and they could turn parasitic. So just doing nothing is sometimes better. Especially if you're fertilizing heavily too. I wouldn't combine fertilizing with carbohydrate applications more than once.