I don't understand why he thinks these Voltas will replace 53's trailers. First problem is 53's are fine for transport outside of NYC meaning the carrier would have to designate NYC a special destination. No carrier is going to send a volta 3000 miles to NYC to deliver a few tons of freight. This means when you get a NYC freight quote you are going to pay for two shipments: from the destination to a local transfer dock and from that dock to the NYC destination. And does each carrier have their own class 7 fleet and hub or is that yet another carrier in the mix? This adds cost and complexity to the supply chain.
Freight cost is insane right now thanks to the global mess humanity is currently in. I had to buy parts for a machine that were light weight but 10 feet long (the wood skid was heavier than the parts.) Parts cost $310, freight was $650 and came on a 53'. If a transfer was involved requiring humpers and a second driver I'm sure it would add another few hundred dollars. Of course mr truck hater doesn't care because he doesn't directly see the impacts from his cushy twitter job.