Whom would it stop?

If your argument is any good, then all this whitepaper would do is make a better case. Asking for a whitepaper is not a bad thing for ideas that require some careful consideration. They're overkill for trivialities that can be fully decided here-and-now and or for things that don't really matter.

Too often have I seen developers running in circles chasing ideas that could have been ruled out with a little forethought and analysis. They'll respond superficially to some idea that tickles their fancy, waste a bunch of time implementing it only to either realize that it's a bad idea, that it has serious drawbacks, or better yet, leave everyone with a dreadful piece of garbage to maintain.