Personal conspiracy theory:

If you're JD what you really want is to get a cut of revenue generated using the equipment. Like the copier market, all run on "clicks". Service is more or less free (and responsive), because if you're not harvesting they're not earning.

I'm inclined to believe that obsession with telemetry collected is partly for service, partly for sales, but also to support future "pay per unit processed" contracts and business models.

Hackable tractors undermine the nascent "farm equipment as a service" business model.