I disagree with your conclusion. There is forshadowing in the series, a good bit of it (i.e. Eggy and Nyn's experiences in the Accepted test; Amerlyn without the oaths, Married to Lan). It is that there is just as much, if not more, misdirection utalized as well. Jordan, and by extension Sanderson, simply intentionally try to mislead the reader regarding the meanings of the various prophacies. I sometimes think that Red Herring is THE major character in the series. I especially like the way the "Blind Begger" was finally resolved.

I could be wrong, but I do not believe we have seen a single actual blind person in the entire series, but we all kept waiting for Rand to loose his sight. We were baited in from the very first book about it (Matt and his light sensitivity). Instead Rand lost sight of what is important and was, for a time, metaphorically blind.

Anyone want to change their guesses about Mat "placing his eye on a scale"?