If I'm not mistaken, that's pretty similar to the reasoning behind BSL, which is even more "open" than "eventually open" - code is source available, anyone who

If I'm not mistaken, that's pretty similar to the reasoning behind BSL, which is even more "open" than "eventually open" - code is source available, anyone who isn't a competitor can use it however they want outside of competition, and in a fixed amount of time (max 4 years) the code becomes truly and entirely free to be used however one wants, including competition.