Corpspeak isn't novel in being duplicitous language. Compared to deliberately vague, concealing, and/or loaded language from life outside work, the corporate lingo is easy mode.
But corpspeak has the property that in can be publicly discussed. "lol look at this dumb bullshit we all do for exactly these reasons" can be stated openly and plainly in a innocuous blog post, and posted to hacker news for people to hem and haw at.
Rarely does anyone even bother scratching at the fiction of our real life linguistic tricks. Because a very bland explainer of surface level phenomenon leads to outright denial, or develops into flamewars.