Python is the #1 fastest growing programming language on Stackoverflow.[1] and #4 on TIOBE index[2]. There is a huge need for good and current python tutorials and/or online classes for the growing community. I applaud the intent for Google to contribute. BUT if your content is not current or not up to the bar, perhaps you shouldn't even consider releasing it? Google internally has a lot of Python 2 code no doubt, but for the beginners that want to learn python, Google's python class is not even on par with the expectation out there.

COBOL doesn't even make it to the top 25 on TIOBE index, so your comparison doesn't matter. Who wants to learn COBOL these days if they weren't mandated by the job or for teaching?

[1]: https://stackoverflow.blog/2017/09/06/incredible-growth-pyth...

[2]: https://www.tiobe.com/tiobe-index/