In the case of the Microwave Oven, the discussion is strictly academic.
In the case of the autosampler, the example comes from industry. This device ( http://www.basinc.com/products/culex/ ) uses a much more developed version of the demonstrated model. The DSL was defined using xtUML. The device was deployed to the field with the basic services provided by primitives (command) of the DSL. New “methods” (biological and chemical techniques) were deployed (and still are) over the years using the DSL to modify the behavior of the deployed system.