This looks inferior to an underground railway in every aspect.
Being sandwiched between Germany, Austria, France and Italy, Switzerland gets a lot of transit traffic. At this point, nothing is really off the table to deal with it.
But why stop here? The Swiss continue to build even more tunnels, one of them is the Eppenberg railroad tunnel.
The solution described in the article is just one of many.
Apparently, they don't actually have electric trucks. Instead, they have "pods" for individual pallets:
"Innovation is also a significant feature of Cargo sous terrain because it will for the first time be economically viable to transport small volumes on individual pallets or containers on an ongoing basis. The continuous flow of small-component goods obviates the need for waiting times at transfer stations. In addition, the space requirement can be massively reduced because temporary goods storage is no longer necessary"