Mutual funds are like hair color products.
No matter how many colors you make, Someone always wants to mix two different colors together thinking that they can improve things.
There are lots of similar funds out there that will do the job you need it to.
By the way, in my opinion the work less, live more scheme is a great example of data mine-ing/data tuning. I just wonder if his approach will hold up to the next 100 years of data ?