I am frankly baffled by why people would ever want 400 million focus points on their camera in the first place. Sure, 5 right in the middle area might be useful compared to 1, so that you can wobble around a bit as you track a fast moving subject.
But if you allow the camera to choose from amongst any of 60+ focus points covering the entire frame, then it's going to get confused by all kinds of things. A telephone pole in between you and the bird you are tracking could get picked up for almost the entire time it's in the frame, whereas if you're using only center or a few in the center, you have time to react and release your backbutton focus to avoid it.
Same goes for referees running in between you and an athlete, or two or three soccer players or racecars jockeying for position. The camera is going to switch back and forth constantly between two cars as one get slightly closer, then the other. And you have almost no control over this or time to react to it, because by the time you can see any of this happening in the viewfinder, the AF system is already responding to it...
When is 11 honestly not enough? Everybody makes this out to be a huge flaw of the 6D, but I just don't get it.
The only situation I can think of where it would be really "needed" would be a singular fast moving object with no clutter at all anywhere near it or closer to you than it. But usually this means "a flying bird or plane" and they tend to move in straightish lines that aren't all that hard to track.