I'm ignorant about sailing and the technology of foils, but seems to me even in hulled sailing races, choices of direction is a critical part of sailing competition, choosing a line that is longer in order to grab a gust. Also, I would imagine that in spite of the massive amount of expertise purchased into these crews that there's still a massive learning curve ahead of them, part of which is likely unlearning what they mastered with hulled craft.
I was reading Fairbairn the other night and it's interesting that long after seats and tracks were becoming standard in most racing shells, coaches still struggled with how to use them. What intrigued me was how the body of coaches rejected the idea of longer tracks therefore using more leg compression for a number of reasons, part of which was the standards of rowing technique based on using the legs but in a very short slide length (greased leathers on flat board, no wheeled seats or tracks). Fairbairn is a difficult read, hard to get to his analysis in the paragraphs of self-congratulations.. What I gathered was that there was a standard track length that allowed one to use full body swing and shoulder extension and that longer slide travel inhibited this.
I couldn't find anything but I would bet that someone set up wheeled seats and tried to use them before using tracks. This would add a complication to technique (seat goes a astray) that might undo any advantage.
(ha ha, brought thread to rowing!!) :^)
In my time, we went through a technique revolution, from the quasi-Conibear style here in the US to the modern style as sold by Karl Adam in clinics, books, and film in the late 60s early 70s. Wow, did we ever misinterpret some things!!! The technology changes were somewhat dramatic but certainly not radical, blade shapes, lengths, track lengths, spreads and workloads, but nothing as extreme as revolutions in the past.