I believe the reality here is that this is that work being done to improve safety. You don't go from 10 to 1% on your first attempt and Tesla seems to view this as iterative, and continuous, improvement of chassis design as a critical output of their products. It's also great to see them highlight this as it keeps safety out there as a concern. Maybe it doesn't influence other car manufacturers directly but it will posit questions in the minds of buyers that may, over time, do just that to other brands.
Regarding injury from being hit by a vehicle: that isn't the point of this release by Tesla. The focus is the safety of the occupants, which is far more top of mind to buyers than the worry of hitting pedestrians. It's great that many brands now have CV that can detect and stop based on a person being within the vector of a vehicle. Tesla happens to be one of them and it would be interesting to see an objective test of pedestrian detection and mitigation at some point. Probably a critical test for manufacturers to have to pass as we continue towards autonomous operation.