Is anyone actually surprised by this announcement? To me it seems like such a trivial development that it was always going to happen.
Wet workshops are more interesting, and I honestly don't know if they will ever happen with Starship. In the short term, I think that they are more effort than they are worth - it will be easier to make a habitat on earth then launch it than to try and fabricate something in space. That will all change as we develop in-orbit fabrication technology, and I can see a time not that far in the future where cutting into an empty fuel tank to create an inhabitable space would be an easy day's work. This leads to a question of timing, and I think that Starship will be replaced by better vehicles before in-orbit fabrication becomes routine. Could go either way though and both are very exciting prospects!