Why not - plenty of people could learn an open source tool like blender and produce another model can't they? As far as durability, I think that's fine for everyday tasks and might even make it a positive, easy to replace, customize for usage type etc.
Oh I agree! I was just thinking about the barrier to entry modifying CAD files. One thing I didn't immediately think of is if you screw up a dimension, you can just print out another to try again...I guess you could argue with the ability to keep improving it over time, the 3D version could have a better fit.