Why must "all adhere" to automation in "the bus"?
I don't think it would have made any difference in this case. They were flying a visual approach so there was no ILS to guide the automatics. If they'd used the automatics they would have been flying HDG and still wouldn't have aligned with the centerline.
Sometimes manipulating the automatics is more work than just turning it all off and hand flying. This was one of those times in my opinion. The fact that they got it wrong was not an automatics vs hand flying issue.