Nothing screams "We have horribly vulnerable systems, we know it, and we decided to ship them anyway" than this argument right here:
"[Manufacturers] say those products too could be more vulnerable to intrusion if they’re required to provide independent repair shops and DIYers access to their wireless technology."
https://www.checkbook.org/national/right-to-repair/

Making it more obscure is not going to stop dedicated attackers. It will only stop the honest people: hobbiest, independent repair shops, and the like