Additionally, Warmoth has to protect its brand. They have no idea of the buyer's skills, and they're right to be concerned about having a third party see a bass with brush-on paint in globs and a couple of tuner screw holes drilled all the way thru the headstock. I remember that Martin used to (they still may, for all I know) used to sell acoustic guitar kits in different stages of completion, using the same quality materials as the Nazareth company, but they did not provide a decal of any kind.
Warmoth font waterslides are available on eBay, if you find the right seller.