I mean there's not _no_ market, but I agree it's specialized. I could see this capability making sense for high-value, time-sensitive construction projects, such as oil rigs or wind turbines.

Also, the "global" nature may lend itself to container ship salvage or search and rescue. Esp. if the Starship doesn't need to turn around immediately, I can see a market for that.

All of these seem like they will need special-purpose custom Starships operated by a non SpaceX entity.