Sure, I'm not saying they're somehow worse than ICE vehicles, they're demonstrably not. But particulate matter is the big health issue and not gases, and more and more studies is highlighting that tires are very big on particulate matter. https://www.theguardian.com/environment/2023/feb/23/health-impact-tyre-particles-increasing-concern-air-pollution
Note that all these studies are VERY recent considering how long we've been running vehicles with rubber based tyres. I also strongly dislike how the report you linked only focused in properly on brakes, which I know full well are vastly superior on hybrid and BEVs due to regenerative breaking and the restarted use of drum-style breaks. And more or less dismisses the tyre aspect, which is extremely irresponsible in my opinion. Granted though that it's arguing from a "Are BEVs worse than ICE vehicles?" so I can excuse some of it.