I think this stuff is interesting. I'm not sure I'm sold on the rising glide path, simply because one's adversity to risk may increase, and so over one's lifetime one is having both the total amount of money in stock and percentage in stock increase over time.
To me the ideal situation would be, once you reach retirement age, to take enough out of stocks earnings to create an annuity that covers 70-90% of your living expenses. If you have ss, the ss+annuity giving you 80-90% of living expenses. Then leave the rest in stocks letting it ride.