Earlier quoted context omitted.
No robot or AI can deal with the dispatchers, lumpers and 95% of the loading/unloading sites. Ever! Humans can barely handle it.
So what? AI only being useful on highways is still useful -- if not still far off. Off-ramp the AI trucks into a huge ass parking lot where a human does the last mile(s).
Driving on the highway is not the only significant part of the job, far from it and I suspect some people are very enamoured by their dreams/greed mixed with the holy tech, just like the pneumatic high-speed trains from the 50s/60s, then maglev, now hyperloop.
Efficiency gains on the existing tech + infrastructure will always win over revolutionary new tech.