bad is relative - so is sugar, candy, chocolates, refined carbs, fat, french fries, nihari, cake, frosting… i think it is about porportion.
I beg to differ (from own personal experience) about the soar throat. Milk is known to build more flem in a soar throat. So if you have a child with post nasal drip or flemy throat - hot milk is not good for that. Hot tea with a touch of honey and lemon does help.