Earlier quoted context omitted.
Elon's personality has been known before he ever came out in support of Trump. Think back to when he called someone trying to rescue kids a "pedo" because they ignored his idea of building a submarine. Moreover, his inability to deliver on promises has been a well-known fact for years.
He regularly delivers on promises. What he consistently fails to deliver on is timelines.
- L5 autonomous driving
- $35k Teslas
- Hyperloop
- Lunar trips to the moon on spacex
- Humans on Mars
But I guess if we just consider those delayed, then all good.