"Lofty"? It's just a standard term for engaging someone's services, generally used in conjunction with some design or artistic result.
As an artist I've done a fair amount of commissioned work. I've commissioned a few pipes. In the case of my commissioning a pipe I do communicate with the carver what I'm looking for in a general way. I figure the carver knows his business or I wouldn't be engaging his or her services, and doesn't need me to over direct.
With the pipe I just received from Jack Howell i specified that I wanted an oversized Billiard with a larger than standard sized chamber, a tapered stem, at least 6" in length. It could be smooth or sandblasted depending on what he thought would work best with the block, and that I'd prefer a light color for the bowl.
Jack sent me some suggested measurements for the chamber to which I agreed, and we were off to the races. He asked me about button height, and in the case of this particular block, recommended leaving it natural because the wood was so clear. He sent me images as the pipe took shape inquiring if what I saw matched what I wanted. So it's a little bit of back and forth.