Part of the issue with an explanation like this is the different usage of the term “short path distillation” in the cannabis realm.
The blog post you linked would fit well in a chemistry text book. “Short path distillation” is synonymous with simple distillation. The term “short path” is used because there is no fractionating column. Since there is no fractionating column we assume we have 0-1 theoretical plates. Collecting fractions off a short path in this case makes little sense, because the technique really only separates compounds with bp differences ~80 °C. Short path distillation in the strictest definition of the term is only useful for separating a liquid from a solid, or two compounds with vastly different bp’s.
In cannabis “short path distillation” takes on a very different form. Vendors sell still heads with considerable internal surface area and path length as a “short path distillation apparatus.” With these apparatus we presumably have a large enough number of theoretical plates to separate compounds with bp’s within 20-30°C of each other (this is the max resolution fractional distillation can provide). so collecting multiple fractions makes sense.
this is just a long way of saying that in cannabis, SPD =/= simple distillation, while in a chemistry lab, SPD = simple distillation.