Black tent feels more of a political tool than a religious necessity

In my experience, a black tent with all windows shut, stays like that only till the person inside wants to eat or drink in public place. Once it's time to dig in, that person opens the window on top, completely, around the same public.

Remember the covid restrictions where mask was mandatory? Yet those restrictions were relaxed in restaurants or eateries. So covid doesn't spread while you're eating? Just like this, ppl I've seen are using black tent. But for them, it's for religious purpose.

Can someone explain the logic here, or do you also this this is just a political tool?