I think it's really important to contextualize the dangers of water rescue here, because there are a ton of them, even in calm waters.
If you are on land and there's someone drowning that's one thing, but if you have to get into the water to rescue an individual, that completely changes the nature of the beast, because then not only are you fighting the water and your SCUBA gear, you're also fighting with a panicked, drowning person. In this specific situation, you're also worried about being crushed against the boat by waves. It's a dangerous situation that even the best divers struggle with.
Here's the biggest factor why divers didn't dive immediately after the storm: if you dive in the gulf after a bad storm, you're diving completely blind. The amount of mud and crap in the water make it essentially a suicide mission.
With that being said, I think the response to the Seacor capsizing was mismanaged to say the least. You're absolutely right about the leadership; they are incompetent, have treated the families badly, and frankly should be removed from their positions. Whenever you have the time, you should absolutely do a follow up. The current mess with the director of the Cajun Navy is interesting as well.
This was a fantastic synopsis of events, thanks for making an informative talk for folks other than us down south!
May the crew of the Seacor Power rest in peace.
Edit: "Southern Louisiana is the Australia of America." Can confirm.