Paper lets the flour breathe, releasing moisture. The grain isn’t 100% when milled and the milling process generates significant heat (mill some grain at home with a motorized mill and see). Warmth + moisture + hermetically sealed plastic smells like a nice way to grow some fungus.
Edit: isn’t 100% dry when milled.
I don’t think you have a point. You’re shaming people in a community who don’t give a fuck about your concern trolling. Calling out shitty organizations for shitty behavior in the loudest way possible is often the only way to enact change. There’s a distinct power imbalance between companies that have money and resources versus individuals in the open source community. Polite and firm are useless unless you have additional leverage.