That news has been around awhile, I remember hearing the same from another source last year, and it makes sense that tire wear is going to be higher on a heavier and torquier sedan, with constantly-active regen braking probably adding to tire wear. But on the flip side, not all "pollution" is equal. The concern with roadside rubber particulates being washed into waterways may be much lower than tailpipe emissions or brake pad particulates from ICE's. I don't know.
Listen, the only way to not impact our environment is to sit home and eat grass all day. Hell, even then, I'm probably accidentally squishing some poor dust mites under my feet, and killing a few worms. Claiming EV's wear out tires faster than ICE's feels like a similar argument to me, highlighting something that's probably small and irrelevant, as some sort of negating factor against their clear and overwhelmingly lesser impact on air quality and greenhouse gas emissions. They're certainly not perfect, but there's no way to argue they're not better, from a purely emissions-based perspective.