Well, you do need to consider things in context, right?
Captain_solanum is right about how math works. The thing to consider is the safety of these delivery bots relative to the alternatives. How often do delivery drivers get into/cause accidents? It's not never, but without the actual numbers we can't really say if these bots are more problematic.
It's difficult to compare these two delivery methods because they're inherently quite different, but ultimately that is what we have to do if we want to figure out which is actually more of a danger.
But accountability is really important here. If companies want to keep using tech this way, they need to be accountable for the actions of their technology. Because these devices exist in a physical world with real consequences. You cannot be allowed to get off the hook by saying "oops, just a glitch, it won't happen again".
Also, you called him an idiot, but you may have also missed his point. We could just not outright insult each other.