Thanks for pointing that out. It is a concern and avoiding the swing-back can better mitigate the risks. At times, if the hook is difficult to retrieve when shaking the rope after returning from a traverse, I'll traverse back over to the hook, lanyard in, then undo the hook and use the hook's line return from the traverse using a more easily retrievable MRS. Perhaps the downside to using this approach is only being able to use half the length of the hook's throw line, as needed to have enough line for a MRS scenario.