A van that's seen a lot of highway miles and was owned by a large fleet is almost always a good bet. It's shuttle services who are skipping everything they can because "lol we're depreciating this over 3yr and then trading in" are who you gotta be worried about.
This is basically a story about who people cut from a filter bubble that circle jerk about Sprinters and Camrys are shocked to find that the most popular fleet van of the 1980s-2010 does in fact live up to it's value prop of delivering boring reliable service to business to which it is just a cost center to be minimized.