How is that misleading? Genuinely feel like it’s saying the same exact thing you just stated, just the other end of the percent. 2% converted, therefore 98% chose to not convert (aka ditch)
I think it's because it's not obvious that there is a free trial, so it sounds a bit like "98% of people who bought autopilot are not using".
This is exactly how I read it until working my way through this thread.
And because it's worded so negatively. "Ditched" is strong language for an otherwise impressive conversion rate. It's silly. I'm not an explicit fan or hater of Tesla, but this headlines reads unnecessarily antagonistic.