If it goes in straight, we don't need to pull it up and neither would they. If it's wonky, we might use ropes to assist those at the base ramming packing chips into the hole. The only thing that would convince me that they hauled them up would be if the slope into the hole was at a shallow angle (less than 50 degrees to the horizontal) AND extended a good way down the hole. A 40 ton block, even starting from 60 degrees, requires 10 tons of pull by a rope attached to its top and pulling perpendicular to its axis. That's quite a strain for a primitive rope.
I think the strongest argument in favour of Gordon's method is that if it works and if it's efficient then why would it NOT have been done that way? Ancient people may have had more limited technology than we have, but they weren't stupid.
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