I think that's actually not something that would be wise to hook up to an automation platform. A car running in the garage can kill, and 'a human chose to press this button' is an important interlock. After all, you have to swipe your way in to the official app, and to use a key fob you need to hold the button for several seconds.
'How dare Mazda permit this' is a real lawsuit that will happen. Automakers also got sued because pushbutton start is confusing and people would leave the car running after use. There is an active lawsuit right now about push-button gear selectors making it too hard to put the vehicle in park, allowing unexpected rollaways.