Since Customer A is already sending to the 2 overlapped vendors, having them in route will result in low ASR on those vendors. Since ASR is a key component of the PRV Score, the 2 overlapped vendors will have low PRV Score for Customer A and will result in them being at the bottom of the routing order. This will prevent the platform from routing Customer A's attempts to vendors it knows won't result in profit, leaving that vendor capacity open for other customers to use it in a profitable manner.