You could get overwhelmed if you attempt to use all of these features but you don't have to use them so you don't need to create the confusion that you're talking about. Instead just use what you want. Nothing has changed with the focus modes or the drive modes and it's easy enough to add the tracking modes to the Q menu or to a function button. If you want to use face detection or ES then you are adding a layer of complexity but I consider ES to be a special situation feature so I don't know how often you need to mix that with the tracking modes. And I'm not sure how effective face detection is anyway so maybe it isn't much of a factor.
For me I have tracking modes, shutter type and face detection next to each other in Q menu. Shutter type stays on MS and face detection stays off almost all of the time so I'm just changing drive mode and focus mode as always and then tracking mode for the times I need zone focusing. It's really easy to manage and not a big change for me and on the rare occasion that I need ES or face detection I'm in AF-S single point anyway.
I have already asked Porsche to add new features and performance specs of their current 911 Turbo to my used Cayenne, which is only two generations behind the current model. If they don't comply, I'll start a shitstorm in the Porsche forum. Of course I expect them to provide that update free of charge.
