There is really nothing objective that is pointed to as to why it "sucks".
The post repeatedly mentions functionality that used to be one click away, but is now multiple clicks away. That is about as objective as measures come. You may not mind it, but you can't say it's just subjective.
The post also points out how UI controls shift relative positions based on the view being presented. One could define a metric that assesses the effect, and anybody calculating the metric would get the same result. Again, you may not mind controls jumping about as you work, but you can't say it's not objective.