I think you are speaking to a strawman version of the theory. The theory is that if the oil is formed much deeper in the crust than we currently think, the oil fields we access today are the result of "leaks" from that larger resevoir. Leaks which could only take place under certain conditions. Some fields would be replenished, but most would not, having been "cut off" from their original source by geologic activty. There is also the issue of the speed of "refill" of those fields that do still have some commnection to the deeper resevoir.
I'm not saying Gold is correct, just that his theories may be being misrepresented and/or oversimplified.
There is no communication between the stacked reservoirs and no reason whatsoever to think that the oil in these reservoirs originated from a common source of supply. Almost always we can identify the probable source rock for each reservoir, being an underlying shale. But that shale has given up all the oil it could and it migrated upward from the shale to the highest sealing trap the oil could find.