reminds me on Mark Twains love for the german language https://www.cs.utah.edu/~gback/awfgrmlg.html

I believe that was the intended joke.

I doubt it. With very few minor correction this looks like phonetic transcription of what slavic (should hold at least for polish, czech and slovak) language native would write it down.

I believe german writing is also close to phonetical. That's why it works.