Again location specific, we've got property in this context for main living in both the United Kingdom (detached, own driveway, single phase electricity supply), and the Netherlands (an apartment with underground parking and HOA, and a city mansion with off-road parking, three-phase electricity supply, solar, storage, ground source heat pump under renovation).
When I said consumer side earlier, that is regarding the vehicle being the consumer and the (smart) charger being the supplier. Now when AC charging it isn't actually a charger as the charger is in the vehicle, but most people call it a charger. My point about it best not be consumer led is because if you program the car to determine the demand based on your home charging, then you have to change that when out and about and public charging. It is much less fiddly, have to have the supply side (the house, the property) determine what is happening. That way, a proper smart charger can make use of whatever the best mix is. And that in turn depends on how the home is configured, which can vary from a simple dual tariff, to dynamic pricing, to actively trading in combination with active pricing when you store, or supply energy. It can get quite complicated even with home storage batteries alone, but if you then also bring in V2H, V2G, V2L aka bidirectional charging, it can get really complicated, and you need good proper smart chargers that support such integration and features.
In the UK, and Netherlands, the power company does have that kind of authority. Smart chargers are mandatory. The grid is national infrastructure and has a need to be able to be managed like that. Many people wish it wasn't so, as in theory they can determine when you can or cannot charge. In practice, this hasn't happened. But let's be real, we do not own the connections to the grid anyway. Even with dynamic pricing and management on the consumer connections, there are entirely different challenges than the grid overall.
Regarding the Telsla Wall Connector there are of course three generations of them that are slightly different. My understanding is that only the Gen 3 has Wi-Fi, so there is one issue immediately regarding where it isn't that smart. Then there are features that are only for Tesla vehicles, understandable to a degree, but that doesn't make it a smart choice as a piece of infrastructure at your home that is intended for charging. Lack of integration with dynamic pricing is another if you don't have other infrastructure in your home that can take that task, but not so noticeable if you have a Tesla as they've offloaded that to the vehicle (the consumer doing it). Solar integration is tightly integrated with a Tesla vehicle and app, great, but not so great when you don't have a Tesla vehicle and want to utilize such functions. If one has a Tesla and just wants a simple charger without more sophisticated integrations or usage patterns, there is nothing wrong with a Tesla Wall Connector. It will do the job. Hence, I said it depends on what your home is like, as there may be a need for other smart chargers that can handle that and integrate fully with the home, and especially so when anyone can see they will have EVs that are non-Teslas as well.