That's like saying we should also turn off keyless entry sensors to make our battery last an extra day too, since theyr draining power as your car sits all week

That's like saying we should also turn off keyless entry sensors to make our battery last an extra day too, since theyr draining power as your car sits all weekend, and then one Monday morning your car won't start when you need to go to work. Does it really matter if your car starts 3000 times from a battery or 3001 times?