I was responding to your question here:

  Wouldn't it be cool if engineering projects called in a team of artists?

By saying it does happen. Could it happen more, sure, but it does happen quite often, and for more than just murals.

Regarding the general debate here of engineer vs artist, I gave up on it. We have to first agree on what is meant by "art". By some definitions, engineering is very clearly art. By others, it's very clearly not.