IMO no. And that's why the rules for simultaneous invention and disclosure are usually in flux. Some countries use first to publish, some use first to file, ... some use evidence that you had the idea in hand before they published or filed as evidence of simultaneous invention. I agree this needs work.What does "real" material property rights mean? Do you mean a design is not real?IP is always in direct opposition to real material property rights.
No, a design is real enough. But if You come to a production design at the same time that someone else does, and you file patent first, should the other guy get screwed out of his material property? Or even if he unknowingly comes to it after you did?
The answer is obvious and I posted the information regarding the arguments against IP laws.