Really?? If ETNZ had been the first to launch, everybody would have been saying how innovative the boat was. there might have been some comment about having the same slab sides as Ineos B1, but the rest would have been all new. By the time ETNZ saw any of the other boats, their B2 was well underway and they couldn't change the design. It seems to me that based on all the available information, which includes what others have built, both ETNZ and Ineos have, totally independently, ended up with similar ideas as to what is important in a hull.NZ B2 is a big surprise to just about everyone. For a design team that prides themselves in being innovative and unique, there is nothing unique about B2 except for the enclosed crew areas. Even that is a copy of the old AC45. Every other element is seen on another AC75’s and some of those have even been discarded.
However, as any foiler will tell you, it doesn't matter how good your platform is if the foils aren't good enough. Great foils on an average platform will beat average foils on a great platform. Same with the rig and its control systems, although I suspect that this time around there aren't as many gains to be made in the rig as there are in the foils.