My soil tests were/are hysterically off in some areas, as the top six-eight inches aren’t actually soil, but what I call “fancy dirt” - bagged composted cow manure, shredded bark, etc. the section on “organic matter” was very low, apparently because there’s practically no mineral content from actual dirt, so the ratio they use is off. In fact, the stuff I plant in is almost 100% organic matter, as opposed to the clay, sand, and loam particles that make up real dirt.
Our county extension agent is now spearheading a drive to measure some factors differently, as so many people are now doing similar things, whether using raised beds over city soil, patio planters, or whatever.
The rest of the test was very useful though, especially knowing that no phosphorus or potassium would be needed for the next several years.