For all CATIII operations, autoland is and has always been mandatory. CATIIIa requires flare/touchdown capability and CATIIIb requires rollout.
Incorrect. To be absolutely clear, CATIII autolands are not permitted at FZ. The last person to try one was sacked. CATIII approaches at FZ are hand flown by the commander, using the HGS.
None of which, I would suggest, is likely to have any relevance to this crash.