There is the rub. They knew they were doing something wrong and did it anyway. They knew they were brewing coffee too hot as they had been warned several times before. They brew hotter so more flavour is extracted and less ground coffee needs to be used.
You aren't even a coffee drinker, are you? NONE of this even has to do with the BREWING temperature, so your conspiracy theories about saving money are irrelevant. It's the hold and serve temperature.
McDonalds claims their customers like the coffee at a higher temp (175-180) since they often commute and don't drink it for a while. The trolling lawsuits claim that's too hot too spill on your genitals safely. I'd agree with the latter, though also with the former. But that means I try not to spill hot coffee on my genitals, and if I do, not to blame the person who made the coffee, but my own clumsiness.
Similarly, I also don't blame knives for being "too sharp" when I drop one on my foot or lasers for being "too bright" when I shine one in my eye.