What caused the Titan to implode? Right now, it'''s not even clear who will lead the investigation | AP News
The US Coast Guard may have jurisdiction for the investigation, and doesn't request reimbursement.
However, the blame part of the aftermath will take years, be confusing, and may not amount to anything as the question of jurisdiction and sea worthy safety regulations is also murky with multiple international entities.
Since he was more Musk than Cousteau, and as a former licensed and professional oil tanker captain with safety of cargo and crew the first priority, there are many more interesting topics to follow since this topic has devolved into the legal proceedings of a former hack.