That's what you might expect from a high performance summer tire, like Michelin Pilot Sport 4S, which has a 300 treadwear rating and has a 30k mile warranty with most getting 40k+ miles... Typical all season tires will last at least 50% longer and have much higher treadwear ratings. I have a few friends with Teslas, they all wear tires very quickly and use the mileage warranty on the tires.
Most of the issue is abrupt initial acceleration, it would take Tesla 15 min to update their software so acceleration is more gradual for the first few tenths of a second the accelerator pedal is first pushed or it's position is increased. It would change the feel of the car a bit, but it would allow tires to last much longer. They will still wear tires more quickly than average because they are heavier and can accelerate faster, but I think it's the instant torque that's responsible for most of the accelerated tire wear. So smoother drivers who don't tip-in the throttle quickly are probably significantly easier on tires. "With great power comes great responsibility" applies to cars, and on a track it costs exponentially more to run a larger, heavier and faster car vs a lighter and less powerful car.
On another Tesla related subject, I read Tesla has been testing prototypes of hydrogen fuel cell type batteries with excellent results and EVs in general may end up using fuel cells instead of Li-ion. I suppose since the tech is new it may progress faster than you'd expect, especially compared to ICE tech that's been around for over a century. But I do wonder about infrastructure, with changing tech there may be far better batteries but no infrastructure to support them. It'll be interesting to see how EVs evolve.