That will work for all of two years before we get the same shit but with "gesture" controls (waving your arms in the air).
Legislate against what you actually want to prevent. Here that's locking features behind privacy violations and connections to third party hardware. In cars it is also controls that you have to look away from the road to use.
The gdpr is on the right track on this issue, for an example.
The Smart Home 2.0 revolution will address the accessibility gap of voice enabled devices by including cameras in home appliances too, so that speakers of sign language aren't left behind.
Think past the end of privacy and imagine the democratization of access to privacy. A brave new world where everyone gets the opportunity to be a big brother. As for me, I'm pretty happy spending most of my time working with a teletypewriter, cooking my food on unsmart appliances, and not using a mobile phone.
Or merely restrict non-consensual data collection like the GDPR does - this kills the underlying reason why every appliance has to be "smart" and internet-connected.
I'm not aware of other manufacturers, although Samsung also makes signage displays but it's not clear if they employ any "smart" features. Some also use Tizen which is Linux based and should be open enough to allow rooting.
Imagine pan frying something on your range, the food splatters, and it changes the temperature on you. Now you need to adjust the burner back down (or off), but you can't adjust the temperature because the controls are now wet with grease. Better be quick to dry off controls and turn off heat before you start a grease fire. Or failing that, moving the pan off from the heat source...