Because the pilot program started, and there has been no carnage or mayhem on the highways as some people were hoping.
Deadly tunnel fire,31 vehicles involved, 3 dead. Nine drivers unaccounted for.
http://www.ocregister.com/news/tunnel-vehicles-cibrian-1892941-officials-investigators
It’s a pilot program like you said. You think Mexico is stupid enough to send in their “normal” POS trucks?