That’s possibly your detection settings or method (detection criteria, etc). My washer and dryer are separate devices on separate power monitoring plugs. The only time power draw for either goes above 2 watts is when they’re cycled on.

I just told the blueprint to wait 2 minutes before deciding a cycle has started before declaring it’s started, and 5 minutes after it has ended before sending a notification.

But I mean, I’m not here to yuck your yum. If it works for you, it works for you.