Good catch, CF.
As with most topics today, few are willing (or able) to connect the dots. On this one we have record volumes of new orders for trucks, trucks equipped with more complex technology, significant mechanic shortages, massive driver shortages, carriers turning away (or cherry picking) freight, rates favoring carriers, increasing hours of service violations, just to name a few.
Meanwhile, no one (yet) is quite willing to be the clear employer of choice in every market. Dominate THAT market for quality personnel, and you can dominate everywhere. Trucks can last longer, with fewer repairs needed. Repairs, when needed, can be done quickly/correctly. Quality people will automatically take care of your customer base, until they become stretched so thin as to run out of hours and/or enthusiasm.
Of course the alternative is to have lots of new trucks (with tech that irritates), less than optimum (mediocre) personnel, continuous (and expensive) recruiting, claims, and the reputation in the market that goes with all of that. Swift is just one such example, IMHO.
Point being, it's all connected. We don't have the capacity for all of the business we could have. If we had all the drivers we wanted, we wouldn't have (running) trucks/trailers to put them in. Rather than address the seemingly obvious (people), decisions are made to chase the autonomous and/or tech fantasy to eliminate or circumvent the human element.