The people who wrote this stuff don’t even think they wrote perfect code that no one can break. They just don’t think about it at all, and/or don’t give a shit. It is super common for software written for IoT type devices to be complete afterthoughts and complete garbage.
Think of like how bad your TVs firmware is, or like the firmware on most routers, etc. Now consider that IoT stuff is usually cheaper throwaway garbage that doesn’t even have the budget for software that TV manufacturers have. It’s just thrown together nonsense.
