you still need to install the tapes (edges) and patches (corners) for reinforcement. Also webbing and grommets. there is still plenty for a sailmaker to do but not nearly as much as before. I guess machines could do all of that too though.
when I ordered the kit to make my screecher I was offered a Bainbridge LP sail which would have only required me to do the reinforcements. The cost was about 10% more for the LP sail (roughly)than an expensive "crosscut laminate" material. The lp sail which would have only required the finishing. Since I do this for fun/hobby I didn't see much fun in just finishing the sail. However, I find sewing the patches and tapes the harder aspect of putting the sail together in a confined space. Sewing the patches on is difficult to do without creating bulging due to the fact you have to roll 9 layers of fabric to fit it under the arm of the machine.