I often find it peculiar that everything that makes a car easier to drive turns it into a driver-aid, or that every driver-aid just makes cars easier to drive. Or that every driver-aid should be banned because "it's the pinnacle and F1 cars should be hard to drive".
ABS&TC, the mother-of-all-aids, are also useful as far as tyre-wear is concerned. Sequential boxes save the engines and clutch compared to a mis-shifting human, as well as massive time-gains. Active suspensions improve cornering performance. Active aerodynamics too. A car with lots of downforce isn't really "easy" to drive either, because on the one hand, you have more grip - but in return, you have to push harder and drive on the newer, faster cutting edge of grip, where your reaction-times are far more crucial than in a slower car, and any amount of jaw could delete your downforce in a split-second. They're not just driver-aids - they're introduced in order to make the car go faster.
At the same time, active aero is where it hits the limit as far as driver-concentration is concerned. With the bazillion controls they already have - engine- and brake-maps, gears, limiters and all - it was tough enough to adapt KERS, but I haven't yet heard of a driver using the wing-flap changes, though I heard the opposite. Perhaps it's just a bit too much to ask?
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