Huge bummer but the next generation of ATT routers with onboard ONT don’t work this bypass :(
I'm currently using eap_proxy with my BGW210, and it's been a huge improvement, but I fear the day the device needs to be replaced with a newer model.
However, it has 5Gbit Ethernet, hasn't re-enabled WiFi on automatic firmware updates, and has only screwed with my IP Passthrough configs once which was resolved with a router reboot. (that was possibly my router's fault, it seemed like it was unable to fetch a new DHCP lease)