Google a company called Wood-Mizer. They are the largest portable sawmill manufacturer in the world. HQ is Indiana. Can you say sawmill and not think DANGEROUS ? They hold owners seminars 100's of times a year. Every one includes maintenance and technical talks, mostly done by their dealers. Many companies do this. It improves sales and the companies reputation
This is "apples and oranges", with all due respect.
You are talking about "commercial-equipment" owned by a company in the operation of their business that faces labor-laws, safety issues, and productivity requirements. This equipment is not a "retail" product, like a Spyder.
Part of the "maintenance-training" the manufacturer provides is also to
keep from getting sued.
Also, you are trying to compare "commercial" equipment that generates revenue for its owner under specific laws, requirements, and liability standards not existing in "retail" products. An entirely different scenario -- thus apples and oranges. No comparison, in my opinion, or by an attorney's point of view.
I can imagine there are numerous issues that arise on this equipment needing maintenance often, if not daily; requiring skilled-operators or maintenance personnel looking daily to help assure the machinery is operable and safe. The company owning the equipment also shares in the liability risk in keeping their employees safe on the job. There is such a thing as OSHA and state regulations regarding commercial equipment -- especially dangerous equipment on the job-site. Again... different laws, use-purposes, and personnel operating-skills cover "retail" products.
Companies like Caterpillar, John Deere, and many others similar are no different than this company in providing "maintenance-training" also -- but mostly for the reasons I just mentioned (i.e., safety, productivity, and likely contract clauses requiring training for on-site skills in maintenance.)
No one should ever expect a retail company to provide detailed maintenance-training to their end-users. Far too many liabilities in doing so. You were better off to have gone to the rally to enjoy the riding in that area and the hospitality provided.