I think that as skills and interests go, amongst us quilters,
piecing is a separate thing altogether from finishing/quilting the project.
I definitely know people who rack up lots of flimsies, loving to do the piecing, but then never quite get them stacked and backed and quilted - don't like that part of it.
Probably that's why there is such a market for machine quilters. Maybe the machine quilters like to piece or maybe they don't, but they definitely fill a gap in getting other people's quilt tops from flimsy to finished.