>>378
It does not explicitly suggest that, and I don't think whoever wrote that intended it to be suggested, as it is not a context where one has much to gain by being deliberately untruthful, and does not directly contradict established fact (that the rant is from a 2001 blog post, the copipe was in S1E1 of SZS, the closest it gets to being counterfactual is that the included text was the Japanese version).
It just leaves a strong possibility open for someone else to read that into it. This is a fairly typical problem with using the passive voice in English. I can't recommend it to amateurs.
What this all really means, though, is that you, >>378, should try procuring gyudon yourself, it's quite delicious.