IF they indeed had the required references, the crew was correct to continue, I agree on that Tightcircuit. The regulations however do assume that Captains have some intelligence and airmanship and the fact that the actual TDZ must not be visual at DA but the immediate surrounding must, implies that visual contact with TDZ is imminent. If not ....TOGA and Missed approach.
The regulation gives crews some leeway to use in a professional manner, nothing more nothing less and is based on a presumption that a crew is experienced, capable and in the posession of a brain.