It is written by Sue Stevens who has every conceivable professional designation there is. The article provides 5 templates based on different volatility tolerances for portfolios for retirees.
A couple of the templates are just different shades of the same color. Sue suggest several OEFs and a couple of ETFs for people to use. She is clear that the weightings are just a starting point and she does not pound the table on the funds she suggests (I am using the word suggest as opposed to recommend).
I think an article like this needs to be accompanied by something that addresses income need from the portfolio. If you have $1 million to retire with, you need $65,000 per year and you volatility tolerance is very low, you have a bit of a dilemma. Something in the equation will have to change. Actually an income need above 6% is potentially problematic, I am more comfortable with 4%-5.5%.
The article also avoids any ongoing maintenance of the portfolio. If your time horizon is anywhere between 10-20 years (as discussed in the article) I am hard pressed to think there would be no tactical changes over that time.
Long time readers know I favor proactively minding the store ( think opposite of set it and forget it), exploring new products as they come and maybe reducing exposure a little at times, like when bond yields start to approach all time lows or when energy goes up 20% in a quarter.