I agree. The OP claims that small fleets are cutting costs to extremes that are bad for society, but the OP provides no evidence of it. By evidence, I mean data. Do you have data on this?
From the article: "Despite billions spent on safety technology, fatal truck-involved crashes are up ≈40% since 2014—almost entirely because of untrained, overworked, and inexperienced drivers now operating 80,000-pound rigs."
From a quick analysis, non-trucker fatalities per mile was about even or slightly increased from 2014-2023. I would conclude it’s not worse than it appears in the trucking situation.