Wow, I have to say I strongly disagree with that statement.
I took AST 1 classroom and field sessions in 2007 from Zacs Tracs. I then assisted Zacs Tracs during one of their AST 1 field sessions in 2009. A few months ago I took Zacs Tracs new AST 1.5 course. Based on what I've learned from Lori during these courses, I feel I ride extremely safe. I don't need AST 2 to help avoid the mistakes others are making, and frankyly I don't think anyone needs AST 2 to do the same. I don't dig pits. I let the folks that contribute to www.avalanche.ca dig the pits and analyze the snowpack and then I follow their updates daily. From that, I decide where and how I'm going to ride. Regardless of any of this, I don't hit slopes like the one in this thread and I don't sit at the bottom like a dummy, so chances of me getting caught in something like this are very slim.
Good Luck, you sound exactly like the "dangerous" guy I mentioned earlier. You can never learn enough about snowpack. Look at some of the people who have been killed in slides in the last 15 years, Alex Lowe, probably the greatest climber ever, Jack Hannan and Trevor Peterson, two of the greatest ski mountaineers ever, those 3 guys had forgotten more about snow science them most will ever know, they they still went out in slides.
Dig your own pits and look at the snow for yourself!!! The avy reports on avalanche.ca cover VERY large areas and conditions can vary greatly from one place to another. avalanche.ca has very good information and is a very good resource, but it is only giving you the "big picture". That information is ment to be suplimented by your own snowpack tests/analysis. Do you really want to trust your life to information on the internet about a snow pit that was dug 20km from where you are riding?