My wife and I are always (excessively) concerned with whether we left our gas stove on/off, the doors are locked and that the garage door is closed.
For that stuff, I'd be willing to pay for the ability to check on that stuff that worries me. Having said that though, knowing that you left your stove on and not having the ability to turn it off would probably be kind of pointless.
You could use a VPN to connect to the home network to control devices when you have to.
However, this can still be hacked to say that the oven is off, while it is in fact on and you’re leaving for the airport.
I never want to turn on any part of the cooker for ever and ideally this should not be an option available to me when tired.
Another way is to unplug them, because then one remembers doing that.
Ovens can also suffer failures where the gas is turned on, but it fails to ignite. This is no issue when you're there and notice the gas smell and the burners not going on. If you're not there, the house fills with gas and explodes.
Fortunately, our range is a "dual fuel" stove, which means the oven is electric but the stove burners are gas. Having said that, stuff being left on is still a concern irrespective of whether a burner is electric or gas.
Works even better with two people as you're forced to cross-check every item.
It's important to keep it a sane length and at a suitably high level, otherwise users have a tendency to skip items that are "obvious".
not even with a 2 FA?
Nope, it's turning it on
The paragraph after what you quoted:
[instead of buying a new oven]..
"Or I can walk over to the oven, turn it to 450, and say “Hey Siri, set timer for ten minutes” and wander off. When my wrist buzzes, I go stick a pizza in the oven and I say, “Hey Siri, set timer for thirteen minutes” and go do stuff.
I don’t need a new oven. I don’t need to worry that I’ll pick the wrong oven."