As the article says, that was written before Tesla hired Randy Pobst to tune the car. At first the car made him uncomfortable since it behaved unpredictably.
He did amazing things with the tuning like stopping the car from leaving the track at 90mph unexpectedly. https://www.motortrend.com/cars/tesl...version-review
So once they finished the programming, they flashed it into a fresh M3P with wider tires and better brake pads and ran 1:21.74 which is impressive, almost as fast as the 2018 Camaro SS 2+2 pony car (1:20.69) which costs $45k before dealer incentives. Almost as fast as a front heavy RWD Camaro sporting a manual and NA pushrod 2V V8.
Nine months later, Tesla has not officially ran the Model 3 at Nurbringburg which is the international pecker measuring track, nor ran it back to back with the BMW M3. Somebody ran a 9+ with it.
But the real world is not a race track. Predictably governs exactly how fast you can go, since hitting trees and poles is lethal. One sweet thing about the I-Pace, is I find it predictable in bumpy braking section and bumpy corners. It can both understeer and oversteer on command with no PTMS active at all.
So the confidence level you have in your car's behavior when pushing it's limits is what matters for drivers who don't track their cars, which is nearly all of them. For street use, the more predictable a car is, the more fun it is. As I found out on a wet AX track, the fact the I-Pace was unflappable made it lap quicker than most the 'faster' cars, even an R8 and Stingray among other victims. I had no doubt what the I-Pace would do on a wet track with the PTMS disabled entirely, I only hit 1 cone (slalom) because I'm not used the rear tires being so far back, and the last cars I ran had shorter wheelbases or RWS. And I barely clipped them.