The port is only effective when the hole in the bearing lines up with the drilled hole in the crank. Because the hole is small and goes by pretty fast the amount of oil that that squirter holes consume is tiny compared to the rest of the system.

Basicly, it would be very hard to see a differance in your oil pressure from that small a change in comsumption.

So while he did not present a perfect explanation the message was correct, the change in used oil volume is small enough that it would be difficult to notice.

Kevin