The radar isn't telling them anything they couldn't see out the window and/or infer from the tower's inquiries and statements. There is nothing I can see that gives ANY reason -- good or otherwise -- to try to land in that.
Even if the initial assessment was that the TS was not immediately over the airport (from the visible column to the right and the appearance of the approach lights), the DISappearance of the approach lights on final should have been enough of a clue to go around immediately, BEFORE getting into the cloud.
If that's not enough to question the pilots' judgement, holding a camera in his lap or propped on the glareshield during that approach was REALLY idiotic!