I read it, too, and, unfourtunately, it’s too close to the truth to be funny. It was surely written by a very frustrated young man who has smashed his skull and torn out many strands of hair in his desperate tries to master this language which Mormon missionaries call the Language of the Devil.
However, I can give a fourth reason to learn Japanese—live there and learn the lingo or sink. In fact, Japanese people are very lenient to the Gaijin trying to communicate in Japanese since they all are sure no non-Japanese ever can learn it.
What baffels me most is why Japanese is so difficult; it has no specific word order except that the verb should be placed in the end of the sentence (compare German i.e.) which by that tells you if something is happening, happens or happened (no will or has or had (compare the 99 verb forms of French i.e.)) or not or if it is a question. The PREpositions are POSTpositions and not so difficult as ... i.e. in English (truly a hell for tests in school). No plurals and no articles or gender (compare all Indo-European languages).
PS. Actually, if you live there, you don’t have to master Japanese. There are foreigners who lived in Tokyo for decades only speaking TAXIGO e.g. migi/left—hidari/right—masugu/straight on. (Very necessary since no cabbie in town can find an address the mailman uses.)