When you release something into the world, you should really understand people.
You should, but "some idiot might try to change batteries while driving" is not a kind of thing you can reasonably protect against.
More generally, at some point safety features will actually make things less safe. For example, forklifts have to sound alarm while backing. Good idea if there were always just one, but if you have many of them working in the same warehouse the resulting cacophony masks other sounds - such as the tire noise of the forklift that's about to drive over you.