Sure... I think the portfolio is a reasonable choice for the typical HN user. By that I mean someone around 25-35 working in the technology sector with a high but not extraordinarily high income.
Of course, 50% bonds was easy to recommend 40 years ago when US savings bonds paid 5-7% annual interest, guaranteed for 30 years.
Inflation in 1980 was over 13%. 2015 was less than four fifths of one percent. Bonds today pay out much better than they did 40 years ago.