Again, to the analogy - it just doesn't tie in with this scenario which is what my first post said. Regardless of that, if AMD, as you said, thought "If the system were a little louder then people would not likely notice the pump" they deserved this.
Honestly, who in their right mind would sit there and think "meh, users will have other things to drown this noise out" should get fired.
You do understand that an analogy does not have to be 100% the same right. Again, while the pump noise is new, the reason it has become such a big problem is due to the fact that the gpu is much quieter than a standard air cooled gpu. There is more too it, which I have explained, but the car analogy fits perfectly in its use. If you cannot understand the purpose of the analogy to highlight the aforementioned, then I don't think you are going to understand with any further explanation.