As a start I would like to say that I have V&H shortshots on my bike. If you know them, you also know they can be loud.
However: I will take care not to unnecessary rev my engine, drive in a high gear, accelerate aggressively, etc.. when driving in an inhabited area (city, villages). I do my best to keep the noise down.
I think it is only natural that the people in this article complain. After all, all their weekends are disturbed by hordes of bikers blasting down their backyard..
I hope this proposal will be rejected. But others will follow as long as "we" continue to disregard the habitat of others. I think the only thing we can do is show some respect towards others and hope they return our courtesy.
I have good hopes though, the Austrian Muscle loves bikes as well.