I also have to disagree with this statement. While it may not work for you, it has worked and does work for many others. Just because something doesnt work for you doesnt mean it is garbage.
Teen,
Correct me if I'm wrong, but the periodization rep ranges I've seen are 6 (power), 8 (strength), and 12 (endurance). So the idea would be to alternate these phases, going to failure in all rep ranges.
Well, I have seen those numbers as well, but remember that they are not set in stone, just general guidelines. For strength I like 5 and below, size between 6 and 10(I just like lower reps ), and endurance, well I have never trained for endurance but it would seem that the rep range would have to be over 12.
I don't find that periodization keeps all gains consistent. If I am training purely for size (which is all the time), then I'll stick to the 'power range' you described. If gains become stagnant for a while then I'll vary my training a bit, and then try the power range again.
If you can bring yourself to train HIT style year round, then I'd reccomend it with periodization, at least until you reach a certain level.