> Is anyone else worried that [...] the Rust world [...] slap on it MIT license because it's [reason you don't like]?

No... I don't think that's how software works. Do you have an example of that happening? Has any foss project lost control of the "best" version of some software?

> Not everything in software is about features.

I mean, I would happily make the argument that the ability to use code however I want without needing to give you, (the people,) permission to use my work without following my rules a feature. But then, stopping someone from using something in a way you don't like, is just another feature of GPL software too, is it not?