Much further than that actually. Stout is designing system specifically for Low Oxygen https://conical-ferm...wing-systems/
Speidel also makes a low oxygen setup for their equipment. https://www.morebeer...ing-kit-20.html
Still a niche part of brewing but seems to have some hold. On one side you have fast and sloppy and the other 100% low oxygen. Like most things I just want to be somewhere in the middle..lol. Good beer that does not take forever and cost me a retirement account.
Marshall may do short'n' shoddy, but I do fast and tidy...not sloppy.