About control - serious question: how is this different from for example Rust, Go, Zig or Python? For each of those you can submit a change proposal through an official process and you can submit code changes through a pull request.
But also for each of those there is a non-zero chance that a smaller group of people who do governance of the project, the core team or leads or module owners, will either tell you that your proposal or code change is not appropriate or compatible with the project's goals or they will help you to merge it. That is exactly the same for Swift.
Why is Apple suddenly a dictator while every other project also has an agenda and strict rules that are being enforced?
Is the expectation to just be able to do whatever you want in a project like Swift?
On the other hand if companies take ownership, provide financing, design, vision, evolution of language, compiler, libraries and ecosystem etc it is nonviable because it is dictatorship now.
Solution is to let drive by commentators to have full commit rights on open source repositories if they want to change any part of language. Anything less unacceptable.