I have noticed the dumbing down. Just by reading the German files (including some intended for hounders), I see how simplified it is becoming. Anyone with a high B1 or low B2 level in the language would be able to understand most of those files. Compare with some truly great pieces of literature--try reading Shakespeare in German at B1-B2 level. Try reading a German newspaper at those levels.
When material directed at the hounders for use at special meetings is so dumbed down that a high B1 understanding of the language is enough, something is wrong. Even the bible itself, as horrible as it is, is written in more difficult language that a B2 proficiency is not enough to comprehend it. The same with most business meetings, and most internal communication. These files are of internal communication, written so poorly that someone with an intermediate proficiency of a language would be able to understand them. (Which I would rather read German language story books that are somewhat more advanced--by reading C1 material, that is the only way I am ever going to reach C1 or better in German.
Of course, if I do reach C1 in German, I doubt that anyone is going to understand what I think of the religion within the hounders, or any confession I make (in German) of anything. And I will have fun saying "Dass ist Pech für dich!" to them.