I couldn't agree more. If it helps to make it easier to understand this particular rule, when you create a new uv map you must re save the .obj file. The only way to redistribute an .obj file belonging to somone else is to A)encode it B)use uv mapper's .uvs format which is really cool, it just saves the uv map changes. The end user has to load their own copy of the .obj file and the .uvs file, then save the resulting newly uv mapped .obj and template.

"Your work is to keep cranking the flywheel that turns the gears that spin the belt in the engine of belief that keeps you and your desk in midair."

Annie Dillard