For whatever reason, Wirth did not seem to be a big believer in standardization efforts (maybe he got burned out by the ALGOL effort). So he always reserved the

For whatever reason, Wirth did not seem to be a big believer in standardization efforts (maybe he got burned out by the ALGOL effort). So he always reserved the right to change his mind about his languages. If he could save a compiler pass, or make the compiler faster, by changing the language, he often would. And the people in Wirth's orbit (The OberonScript author did his PhD with Wirth) were naturally interested in programming languages, and the compilers were small and well designed, so they were easy to modify. Last of all, while Wirth is a very practical guy (having designed multiple workstations full-stack), but he never pursued commercial practicality or industrial applicability as an objective in itself. He'd rather pursue whatever his research agenda at the time was, and if industry found something useful to pick up, good for them.