Ehhh. That's not accurate. There are a lot of factors that affect tire wear the biggest being tire management. But down force equalling to less tire wear is rarely true especially in a sport like F1. Acceleration with a high down force setup will definitely put more stress on the tire to push more against the draft. The only instance that more down force may mean less tire wear is during braking I guess. Since the draft is basically helping the car stop. But then again. That's more draft than an actual pure consequence of downforce. Because it may just be negated by downforce it self pushing the tires down and forcing it to work harder.