Am I really bathing if I’m using water I cannot drink?
Yes, drinking water is cleaned to the point that it will not make you sick to drink assuming a normal immune system. That is extreme over kill for bathing (and toilets, laundry, etc). The only reason we use drinking water for everything is because infrastructure is expensive and laying non-potable water pipes would cost tons.
I think the point is that there isn’t a good enough reason to put internet in a car that negates the risk of it.
It is like adding lead to food. It’s a cheap sweetener with no calories. You can argue that cheap sweeteners aren’t important to you, but I don’t think you can argue that it isn’t a good reason. It just isn’t a good enough reason to negate the risk.