So, I listened to the video...
How are your motor and transmission mounts? When the transmission mount collapses you can get metal-against-metal, and it would definitely be torque-sensitive.
If they've gotten oil soaked they can soften and separate. The motor mounts won't come apart completely, there's a metal catch. It's not dangerous, but it will transmit noise and will be affected by acceleration, deceleration, or going in reverse depending on how they have worn.