sduck
Mr. Duck
Are you sure you don't work for tesla?
Whatever the history, reasons, explanations, etc, it's still a poorly implemented "feature" that could easily be fixed by having the default setting be that the TACC sets it's speed to the speed you are going, whether above or BELOW the posted speed limit (without having to preset some kind of offset). You know, like basically every other car out there. Then, make all the speed assist bells and whistles available in an optional setting that you can enable if you want.