I've got to be honest - I think there is a whole load of nonsense being promulgated here.
I'm not an engineer or any sort of technician but I understand the basic theory of ...........................
My fan heater, set to 21 degrees will produce heat until its sensors indicate that the target temperature has been reached, then it will cut out. .........programming will ensure it freezes the hell out of me by allowing the temperature to drop to 19 degrees before restarting its.........cycle and thus eliminating the possibly more annoying trait of constantly switching on and off between 21 degrees and 20.9 degrees.
Turning to motor vehicles, ever since my Lambretta GT200 followed by my Austin A35 and every vehicle in between then and now...if I was travelling along (let us assume a never ending smooth level road with no wind) at 50 mph (chosen to equal 80kph) and wished to increase my speed by 10% I would increase throttle and watch the speed increase until the target was achieved and then reduce power to maintain the target speed.
That, in my mind, is nothing whatsoever to do with............but may well be an example of 'feathering', for all we care.