What if you use fabric pots and the roots are constantly being aerated ??
Uh . . . that is the point behind the bag. The technology of them. Root amputation in a solid pot is an attempt to imitate the principle and it works. Those freaking out about those dainty roots:
I had seedlings in peat pucks with biodegradable nets. BS. The nets bind so long the plant dies, usually during heavy flowering. Don't use them!!!!!!!
But I did and was digging up plants to remove this %#@*&% netting with roots all protruding through. I got to a plant and dug it up and realized it was a clone and no net. OK back into the dirt. But I had built a 5-gallon DWC and wanted to use it. Now all these plants were flowering first off so screw the "don't mess with a flowering plant". I do routinely if needed and never lose a plant.
back to the clone - I then filled up the DWC with TAP WATER. Got a coffee can full of warm water with some Dawn in it and dug that clone back up. I bathed the roots totally in this bubble bath to remove all organic materials and ended up with shiny white roots - tons of them. Into a McDs cup I had poked holes in, filled it with horticultural grade pumice and into the drink.
Nutes were added and etc but bottom line for you root freaks - that plant continued to heavily flower and added tons of buds and weight once plopped into that DWC after her being dug up, replanted, dug back up, given a bubble bath in dish soap.