The guy spends a very long article explaining how things could be laid out easier to orient yourself in and then asks you to give a minute to get used to his color scheme.
This criticism seems somewhat unfair. I believe they were implying that familiarity with the old design will strongly bias your initial reaction, and giving it just a few more seconds will help to avoid that trap.
No. If the new design is better, I will immediately go "oh wow, that is good". If I have to give it time until my bias goes away, the new design is not necessarily better, merely different.
