That is correct.
For us, we don't want to go at a fixed time so the option of the fixed week is not very useful. And if we did use it I'd rather not be paying the extra 10% in points if I didn't have to. A big plus for me for DVC was that it's a point system, not a traditional fixed week. Now yes, you can release it but then what's the point of the fixed week if you weren't going to use it the majority of the time or even 1/2 of the time? Some will say that it will garner a greater price on the resale market but so far there's been no evidence albeit only a few have shown up. In the case of people who bought fixed weeks for the larger villas I think it's been a detriment to sell - they would have had easier resale if they had split up their initial purchase. I've seen several that sat on the brokers websites for a very long time. VGF studios in early December are so far the only rooms that I could see having it as that resort is small and there were a lot of existing owners that bought a small amount of points and expressed they wanted to use them for stays in December so it's been a difficult time to book. But, there's other resorts that I'd be happy to stay at too so again, no need to own an early Dec fixed week there.
In a different situation, if you did always go the same week I can see it making more sense, but for the most part you can make a smaller initial purchase and still get the same room without the 10% premium. There's a few other situations where the justification could be there but that's individual situations and I don't see it as an option that always makes sense - or even one makes sense the majority of the time. The benefit just depends on the situation.
Thanks for the response, it helped me understand this a lot better.