How well would you say that Tesla is coping with this as a company? For that matter, what about Apple?
I can't even imagine the number of security patches that have gone into the Linux kernel in the last 11 years.
Let's take a step back and think about this statement. Isn't this insane? We know enough to be able to build something much better than this. The reason that we don't, is that we've just kept on pragmatically building on what we had before. We're like a corporation that keeps pouring money into its "stovepipe" system because we keep on making short-term decisions. (Somehow "stovepipe" has come to mean "vertically isolated," but I seem to remember that it also used to refer to the tendency of iron stovepipes to corrode and need constant patching.)