the aircraft would crash back into the runway obstacle
I've been looking for a new explanation for some of my firmer landings, and now I think I've found it. We didn't land - we crashed into the runway obstacle!
On a slightly more serious note - presumably if airborne in the first 6000 feet, followed by loss of an engine, followed by actually settling back onto the (uphill) second 6000 feet, would one have the presence of mind to choose whether to stop or keep going?