If you really don't think there's a legitimate reason someone might want their washer connected to the Internet, you need to get out more.
Have you considered that a washer might be in the basement? And the person might be 2 floors away where they can't hear it? And they might appreciate being able to get a notification when it is complete to remind them to move it to the dryer?
Open your mind a little more.


Whether or not I can isn't relevant to whether I want to or not. My point is that you act like you can't conceive of why someone would want it that way. It's an absolutely narrow minded stance.