Yep, I believe the regs say, early and ample change of course to show your intentions and avoid collision . Right of way or not...Avoid a Collision.
Of course, that takes a skipper at the helm and crew on watch. And a helms person who is willing to make a course change . Even to punch a button on their auto pilot .
With the super equipped electronic wonders, auto pilots and GPS, etc. and party time underway.....good chance of .no watch standing ..
Usually catamarans have an entire crew or compliment of 6 to 8 to more people on board....how is that no one is on watch ?.
The fortunate thing is that no one was injured or killed .