Akro-----where ya been mate, reply 491 page 25 mentions the report!! Get with the program will ya
Yep, no excuse other than brain fade.
I think this discussion is maybe forgetting that the crews were probably getting additional information that is not part of the ATSB report. I don't fly for the airlines, so I'm guessing. But I would hope that the respective companies were making phonecalls to people on the ground at MIA and relaying this on the company frequency.
If I was onboard, I'd be pulling out the mobile and calling someone on the ground, although I'm not sure that the workload of the approach would have allowed this.
Either way, I would hope that the captain was getting some informal contemporary information on the fog and its development that would aid his judgement.