Al Frank is a good reporter. I think he does a good job in picking up the major issues, or non-issues of the garbage trains. And, separating them from the real issues.
It seems to me that M&E needs to convince the Freeholders that the cargo their Morris lines carry reduce the truck traffic on Morris country streets. I'd suspect that the Toys cargo is largely boxes offloaded in California, for example. If (big IF) Home Depot decides to establish a regional center for lumber, sheetrock, fertilizers, most of that cargo could arrive by rail, eliminating hundreds of trucks daily. As it is, trucks deliver those goods to individual stores via long haul from South Jersey's regional center, I believe.
But, there is no way, ever, that boxes arriving at Port Newark / Elizabeth are gonna go rail to Mount Olive, Parsippany, Montville etc. That's pretty fundamental, and I'm sorry he didn't make that clearer.