We would obviously need to collect lots of data with safety drivers in place to determine how often they are necessary and how many accidents (both lethal and non-lethal) the trucks get into to determine if they really are dangerous, but this is a totally reasonable take from the head of the CFL.
> "We will continue to fight to make sure that robots do not replace human drivers and that technology is not used to destroy good jobs.”
Using union power to protect jobs just for the sake of protecting them is the thing that labor unions do that most people don't support. See the recent writer's strike for a good example -- many supported their desire for better wages and working conditions, but feelings were much more mixed on support for allowing AI to replace writers.