The holy of holies was the place where most of the gold in the temple was kept.
When the temple was burned, all the gold (and other valuable metals, etc) melted and seeped into the cracks and crevices, and the Roman soldiers pulled up all the stones to get at the gold.
If this wall survived, it is because it was far enough away from the temple for the Roman soldiers to know there wasn't any melted gold in it - as the entirety of the temple was torn down.
localsal 1 points 8 hours ago
The holy of holies was the place where most of the gold in the temple was kept.
When the temple was burned, all the gold (and other valuable metals, etc) melted and seeped into the cracks and crevices, and the Roman soldiers pulled up all the stones to get at the gold.
If this wall survived, it is because it was far enough away from the temple for the Roman soldiers to know there wasn't any melted gold in it - as the entirety of the temple was torn down.