I have chemical sensitivities so rarely use unwashed fabrics. All my fabric is dried in the dryer. It is folded after it comes out of the dryer and stored. When I want to use it, I iron it.
It's a lot of work if you are cutting it all at once. But if you plan to take your time about it, it is not unreasonable to do.
But if you normally sew with unwashed fabrics, then I don't see any reason to pre-wash before cutting. Of course, there are exceptions - flannel!