One issue with some big ticket items, like EV chargers, is that they ramp up and down slowly in a way that can be very different depending on model, charger type, charge limit, battery size, and even EV software version. Sense was originally designed to detect on and off of devices immediately (bubble pops up right at the start), but EV ramps are better detected after a few second to minutes. And just the size / magnitude of a ramp doesn’t tell what specific device it is - Sense has to sort through literally thousands of possibilities. Specific recognition is not as obvious as most people think.
More on coming enhancements in “Progressive Device Detection”, here: