I was waiting for someone to say this. The Dieter Rams philosophy has picked up steam, but people would be mistaken to conclude that good design will always be a sort of zen minimalism. The best design is whatever most clearly communicates the message.
When I took a graphic design class a while back, my teacher used the example of a pizza flyer. By any standards, they're not minimalist. They're full of garish colors and crowded with pictures--and yet, they work. Personally, I can say that I'm much more likely to buy from a place with that type of ad than one with a "minimal" ad.