No, they did have a point, which Underemployed illustrated again...but that point seems to have been lost on you, since you have a hang-up on this "free will" thing and can't have a single discussion without trying to make "free will" fit into it somewhere. If we were discussing the colors of turnips, you'd have to say something like "how does this prove free will?"
The point of this thread is determinism vs. true cause and effect.
Let me outline the argument once again.
1. In an absolutely predetermined universe, the only truly meaningful "cause" any event can have is that said event was predetermined by the Creator. Some events may appear connected, but if the universe is "predetermined", any connection between events is coincidental. The short hand is, as someone mentioned, the "death fate" argument. If it has been predetermined that you will die by gunshot, then you may drive wrecklessly, or swim in a rough ocean even though you're not a good swimmer, because you can't die in a car crash or by drowning, you can only die by gunshot.
2. In a true cause vs effect universe, a choice is made between two or more options by some entity seperate from the Creator. That entity may be another consciousness, or the D&D "player" you so often refer to. Nevertheless, the Creator may program various "possible consequences" for choosing each option, but that Creator cannot know which option will be chosen. If he/she did know, then the whole concept of "options" would be an illogical and unnecessary addition, and it would essentially be the same as the universe described in Item 1.
The whole point behind me writing the computer programs to illustrate the above two items, Franko, is so that you couldn't call these arguments "illogical", because if the computer programs were "illogical", they wouldn't work - and they do, in fact, work. The arguments are perfectly logical...unless you want to claim that computers work illogically.
Nowhere in this explanation does "free will" show up in the equation. This thread is not about "free will" - so, as I said, don't keep trying to change the subject.