Asking why to a part of code or workflow is a good thing, even only because of curiosity. After knowing it, you may find the reasoning brilliant, or ridiculous

Asking why to a part of code or workflow is a good thing, even only because of curiosity. After knowing it, you may find the reasoning brilliant, or ridiculous and dismiss it and that's it. However if any chance you have the same situation as OP, it may come out valuable, either currently or in the future.