The reason being the format change will be jarring to someone who is not used to seeing the expanded mode. But you bring up a good point. I'm not mired by main

The reason being the format change will be jarring to someone who is not used to seeing the expanded mode. But you bring up a good point. I'm not mired by maintaining legacy, so I could take this as an opportunity to educate users about the \x auto by enabling it as default.