Please don't fall into the Dunning-Kruger[0] trap by assuming a straightforward task is also easy to perform. These things may very well be complex and include aspects that are not immediately obvious. And even if they don't, even simple code executing simple tasks can be vulnerable to bugs or flawed reasoning without the authors (or tooling) being stupid or naive.
[0]: https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect