One of the things Mr. Doyle talked about was the fact that the trucking industry is known for having low requirements, low skills and low knowledge.
That's a little odd. My brother works in that industry. He had to take a fairly lengthy training course and he has to have fairly complex skills and knowledge. You say that this classification doesn't create any problems in selection. You also say that it means that the employer has to provide funds to pay for a return ticket. Apart from that, you say it doesn't cause any problems.
Do the people who work in the trucking industry have a closed visa, a visa assigned to a particular employer, like other temporary foreign workers?