LOL yep 10 psi will buy you a 1/4 second or so. Who cares? The real point is to get off load when the light comes on and shut down ASAP. On a street car you have a LOT more time than a race car.
We peak at 85 psi on the race motor- 45 to 55 at idle (don't honestly remember). I've read too many folks damaging oil pump gears running 100+ at speed. I don't run an oil warning light. It might scare the driver away from setting a record.
I'd rather spend the extra money on coated bearings and pistons and better oil to prevent damage than a 1/2 second dummy light.