It is a double-edged sword, like most technologies, yes, it will stop you driving beyond a set speed, a la my wife's Peugeot, but it does not stop over-runs where the car is coasting, i.e. downhill, and if you have not turned it off, but need a sudden burst of speed, it stops you dead in your tracks, no matter what...
I am fortunate in my roles with various magazines and now the YouTube channel 'Let's Drive It', I am driving a different car every week, from a variety of manufacturers, so I get to see the best and the worst of the different applications, from genius to god-awful...don't feel you are necessarily missing out, but it does lead you to question why some countries get it, and not others.
Some years ago, I was asked what KIA should fit, it was an either/or choice, not both, Stability Control or an extra airbag...after much thought I said Stability Control, on the basis it would help reduce the severity of the impact, where the airbag would only cushion the blow...but they wouldn't do both, in the end, based on the opinions of the journalists polled, they introduced Stability Control first, the extra airbag came a couple of years later...sometimes the decision is driven by the $$$, to maintain the profit margin, they control the cost, silly as it sounds, it could even be the reason for this decision, I will see if KMAu will offer up a statement.
Similarly, when Toyota built the TRD Aurion, with supercharged V6, it was supposed to be AWD, but that was too expensive, so they approved the engine upgrade - 300 and a little horsepower - but it was FWD...that was a car that was actively trying to kill you, great fun, but you never relaxed while driving it, had a mind of its own...
A bit off-topic, but trying to give some examples of similar decisions in the past...