the problem for me, are  the tools we have.
most are optimised for organic shapes. but for non-organics, those optimisations cause problems. where I just want a shape laid out as if I just unfolded it like a papercraft model, most offer an 'wrap' tool that introduces distortions into the mapping. ok for organics, but for say piping on a model where you ideally want it laid out as a straight cylinder (as an example the same can be said for say a model like a room with a lot of bulkheads and alcoves) it's not good at all. I then have to fix those distortions...