my guess would be that the bridge crew probably has orders not to engage in risky operations with a large ship like that unless there is immediate threat of loss of life. but I can't imagine they would not notify someone else who is in a much better position to actually come and help.
it can take a long time (like hours) for a ship that big just to come about and get in a position to drop a boat in the water to even start a rescue operation. and that assumes they have anyone on board capable of doing so.
it seems unlikely to me that there are any boats a ship like that can easily dispatch and retrieve in the open water.
another "news" report that leaves a lot of things open.
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Warning - I am not an expert on anything having to do with this forum, but that won't stop me from saying what I think.

Bob