Yes. Design is fundamental even to the point that we can walk from the couch to the fridge because of the design of our anatomy. Does that mean that the purpose of our anatomy is to get a beer?
What I do not agree with is the way design and purpose are being presented in this thread. Somehow, I get the subjective feeling that what is being presented is only part of the story. Perhaps, what I am subjectively seeing is similar to some, not all, contemporary philosophies which have as their base one of the many varieties of materialism.
In other words, we can all start from the fundamental position of design and purpose being obvious. The difficulty is that we travel on different philosophical paths.