That's a 6 year old screenshot. They've made incremental improvements since... but yes, I've grown to appreciate it. The most annoying part of unity7's interface is its alt-tab function: It toggles between apps, not windows, and that's annoying.
That's the same behaviour as OSX. At first I also hated this behaviour, coming form the Linux/Window environment. But after using it in conjunction with ALT+` (to cycle through app's Windows) I actually find it better than the standard Windows behaviour.
My biggest issue with the macOS way is that there are edge causes when using Spaces. The biggest being "stand-alone" Chrome apps like Signal Desktop are still tied to Chrome, even though they get their own icon and a separate place on the Dock. CMD-Tab'ing to Signal Desktop might just send me to a Chrome window. Ugh.
Alt+` (or whatever key is above tab, if you have non-US keyboard) toggles between windows of the same app. I don't know if there is key combination to toggle between all windows, though.