Again, if your goal is racing then you need to optimize the acceleration. If your goal is recreational skiing then more often then not you are mitigating it. HUGE tactical difference.
It's obvious that gravity can accelerate you more in the fall line then out of it. If you are racing then you find ways to optimize that. With recreational skiing we generally find ways to prevent the fall line section of the turn from accelerating us too much. We mitigate it. It's a completely different set of tactics. So it matters in the discussion whether you are discussing racing or not.
Also in racing you are forced to follow a course which is by design trying to force you to stay out of the fall line, so the whole thing in racing is how to stay in the fall line as much as possible with the least amount of speed bleed in order to do so and the shortest line to do so. In recreational skiing we can take whatever line we want, and generally speaking we will be trying to keep our speed just a little bit or a lot under control. That means staying out of the fall line actually and using speed bleed and if we have room, rounder turns in order to shape the turns with brushing and staying out of the fall line. Totally different tactics.
Rich in the article Beni was slower then Ted. Ask your self why that approach was slower then you can see why longer periods of brushing will result in slower skiing then otherwise. It can be taken much further for recreational skiers of course. Beni was still trying to get carving around the gate in the fall line. His time was lost because he spent too much time not carving. Ted did his braking and then got back to carving sooner before getting to the fall line.
A rec skier can brush continually for even more speed loss then that. A rec skier can try to stay out of the fall line rather then pivoting into it as these racers did with their stivots. What I said about beni is relevant if you look at why he was slower then Ted
I agree to the differences you identify between free skiing and racing regarding line and speed control. While free skiers have more freedom and choice, the skill set transfer is always considered racing dominant.
I hear you regarding Raich and admit my points were somewhat collateral to yours.
As a matter of fact, Shiffrin may very well have lost Soelden simply due to not carving as much of the turn as Brignone similarly as Raich compared to Ligity.
I have been aware of Ligity's self proclaimed advantage of starting the carve sooner and ending it later which makes perfect sense to me. It is also a fun way to free ski groomers keeping your transition marks in your tracks as short as, sometimes even shorter than the length of the ski itself.