Depends how you define best, I assume best in the article means ‘output is close to 50/50 and independent’, in which case the 01/10 solution is already optimal given the assumptions.
If you define best as the most efficient at converting inputs to outputs as well as the output being 50/50 then there are better ways such as your example.
If you define best as the most efficient at converting inputs to outputs as well as the output being 50/50 then there are better ways such as your example.