There are more octos dragging around on coral & sand than secured.If a person maintains and checks their octo in a standard set up it shouldn’t have any seaweed sand mud or junk in it anyway. A bungees octo that never gets used could be the same way. Everyone is supposed to check their gear before every dive anyway.
As the OOA diver I don't want some regulator you may or may not have checked 30mins ago on the surface and forgot about. I want the only regulator that was verified not to have crap in it and was working 1 breath ago - the one in your mouth.