I think you are missing the bypass function. The bypass is in the oil pump. When it starts bypassing, it moves a valve that dumps excess pressure into the intake side of the pump, returning to the pump. No oil " bypasses the filter " to the engine, .
ok, like you said, looking at the oil path diagram I don’t see how it could change the oil flow. I guess with the extra new engine debris that usually shows up at the first oil change could be enough.
