Unmanned survey vessel

No crew onboard doesn’t mean no jobs for seafarers, they just move ashore and go home after their shift:

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The USV will be remotely controlled from shore – but will have many autonomous features to ensure safety and integrity of the spread. It can operate in severe weather conditions. During operations, both the USV vessel crew and ROV operators will be co-located in the same remote operating centre.

Waiting on the laws and rules to change, not the technology?

The Royal Navy has discovered much to its embarrassment that the cameras on its unmanned surface vessels were sending information back to Chinese interests. The information could include highly sensitive information including the identity of special forces.The equipment was found to contain some Chinese components and was supplied by a third party to Kraken, another British Company involved in the offshore oil industry as well.
Perhaps the Chinese were doing their oil exploration from the comfort of home.