For no apparent reason, apart from an excess of free time, I just binge-watched some old AC races, including the most recent series.
One thing that struck me is that on the old monohulls there was always something going on ... a bear-away set, a spinnaker peel, a torn foresail ... that was visible to the cameras, with the crew bustling about and setting things right.
In contrast, with the foiling cats, a lot of the sailing was invisible to the spectators, even with dozens of cameras on the boats. On the ETNZ boat, for instance, Peter Burling was pushing buttons and steering (while napping if you listened to the commentary), Glenn Ashby had some sort of electronic controller for the sail trim, but didn't do anything that looked like sailing. And apparently Blair Tuke also had some sort of control over the foils using an ipad thingy on his forearm.
But exactly what was going on was pretty opaque. The commentators had to guess who was doing what and how.
I assume that's pretty much what we're likely to see in 2021.