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.
It's not about control jumping. Google makes decisions based on data so they know these changes require more clicking. Why did they hide them? Probably because their data shows that most people do not use them (which I've noticed in most non-tech people), so not showing those buttons is actually less confusing for most people and thus offers a better UI to them. Objectively.
because some functionality was moved and now requires more interaction doesn't mean its objectively worse. If by moving a feature that is very seldom used ( like renaming the subject ) allows you to make common features easier to use then its better.
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.