What I HEARD was:
1) F/O argued against flying further than Zagreb. Was overruled by Capt.
2) Capt was Senoirity no 1 with Hapag. - enough experience to cope with something like that faulty Gear Leg.
3) Company wanted him to fly as near to Hannover (DEST) as possible. (They planned to go to Munich apparently)
For once I agree with 411A. Pretty straight, just one unclear thing: did the company "order" him to continue ? If so, why did he do it, especially when his F/O showed signs of "resistence" ?