That it's more dangerous to leave the indicator (turn signal) on than to have the Lane Assist pushing against the need to move outside the lane. I believe the insurance company would argue in court against you.
As I understand what the driver's manual says, if you turn your turn signal on the Lane Assist will NOT pull you back in lane. I make my living as a driver and have experienced this many many times. Do you turn your turn signal on when passing a cyclist?
In general there is a shortage of semi-truck drivers in the US and the move to autonomous semi-trucks is to alleviate issues with this shortage of drivers. Although Trump is adding to the shortage by eliminating the supply of immigrants that usually filled many of these driving jobs.
https://www.msn.com/en-us/news/us/the-first-driverless-semis-have-started-running-regular-longhaul-routes/ar-AA1E0Iba?ocid=msedgntp&pc=LCTS&cvid=90e0c68d97d54b329041ed7a9a0dad8d&ei=33
(Click on MSN)
The first driverless semis have started running regular longhaul routes
Driverless trucks are...