This culture ("F your emissions controls," "I the lay blue collar know better than the committes of degreed engineers who designed the thing") has never cared about safety, nor has the aftermarket ("fitness for purpose, engineering, warranty... to hell with all that, the only requirement for our product is that some idiot should buy it")
Improperly repaired and modified cars are a detriment to the safety of others on the road, but wishing the problem away like Tesla is doing is not going to help anything, they need to publish and make accessible the documentation like the real car makers do.