I chose the word "agility" carefully. I did not say "roadholding" or "cornering". A heavy car like a Tesla can have the suspension and tires to stick to the road through the corners. But, as a famous engineer from the future said, "Ya canna change the laws of physics!". All that mass has inertia even if it sticks to the road well. If you're going through the slalom or switch-backs it is a lot of weight to slug back and forth and consequent slow response time. All else equal, a lighter car is more nimble because it has less inertia.I could have written that review. It's exactly how I feel about them.
A poster above mentioned "poor agility". That's simply not so. These cars are heavy, yes. But they have the suspension goods and the weight distribution to be very agile indeed. If you like to drive like and idiot (I do) these cars are for you. That agility shows up in the autocross times, as Model 3's on sticky rubber are consistently in the fastest group.