I really really appreciate you sharing this trick. My specific use case is very similar to you--I'm on a multi-acre plot with five "aimesh" nodes, three wired with ethernet & two using a 5ghz backhaul. 5Ghz performance & roaming is rock solid, and aimesh has been surprisingly stable at a fraction of the cost of buying proper enterprise access points and running more ethernet through the attic.
But, I have dozens of 2.4ghz IOT cameras whose performance was crippled by interference. I had tried turning off the 2.4G radio on some nodes, and reducing the TX power, but ultimately having so many devices all on the same channel just wasn't cutting it. By changing the 2.4g channels on my nodes to leverage 1/6/11, my 2.4ghz issues were immediately resolved and I can watch all my camera feeds in parallel now