It's not over-gassing - it's "understrength recoil systems" - even though most people think it's overgassed, then jump straight on that adjustable gas block bandwagon right away. Wrong bandaid fixing the wrong problem, IMHO.
We've know that the 308AR platform is the Wild West with no accountability, since late 2009. That's when this board was formed, and why it exists in the first place, man.
The AR-10 Platform doesn't have these issues, as you've stated. Armalite figured that shiit out over half a century ago, and did it well, and they work. "AR-10" is not in that picture. ".308AR" platforms are another matter...
Terminology makes a difference, too...