It's not just a clause. People will claim that this is the only safe way to charge them.

Personally, I think we need a cultural-architectural accommodation - we used to have coal chutes, milkman boxes, ice doors. For well-regulated but large batteries like an EV, a detached garage. For raw cells, a grill sitting on the driveway.

I have only had one "Spicy Pillow" from consumer devices (a phone-charger power bank), but with raw LIPOs in RC hobby gear it was an eventuality.