Foundation drain leaking?
This is really wrong.  Your drainage system should be moving the water at least 4-6 feet from the foundation - unless you are in a desert where I have seen some set up like yours. 

Downspouts to PVC (no holes) to yard.  Just switch out the path of the PVC in question and fix the issue.  Don't think there is any logic to something done absurdly wrong.  I had french drains suppose to outlet to the side of my house from mid back yard.  As they reached 5 feet from the side... they started running uphill.  Don't overthink other's stupidity.