If a keyword is here, generally, it means there is a use for it. Feel free not to use it, but it is generally a better idea to try to understand why it is there

If a keyword is here, generally, it means there is a use for it. Feel free not to use it, but it is generally a better idea to try to understand why it is there before calling it a mistake. Here, it goes well with what is called "offensive programming", a take on "defensive programming". Here the idea is that you crash as soon as something unexpected happen. It is a bug, fix it instead of trying to recover from something you don't understand. It is actually common in embedded software, if something is wrong, stop execution and wait for the watchdog to trigger a restart.