I did complain about this, but think the team have a good enough compromise in this

Here I have the taskbar set to "combine when full". Even
Long dislikes this navigation, and most of the Microsoft demos at Mix from the likes of Scott Hanselman had this setting.
The analogy I had in my original complaint (no need to ressurect that post) was that if you are on the ground floor, it usually is quicker, especially if there are a lot of people (windows), to take an escalator and not
an elevator. For all the taskbar videos that they have on offer, this problem has not been solved in the new taskbar, and is better suited to the old taskbar.
I have my taskbar set as above and am pleased-as-punch. Maybe I'm a slow learner, and may eventually "get it" but I like the old taskbar best.