I don't know about Xcode, but Swift is open source with an active community so if it doesn't work for you then you can definitely bother the Swift Open-Source project with a pull request or a proposal for a language or tooling improvement. You can also have a discussion on the forums or in the bug tracker with fellow contributors.

You can also make the change in your own fork and use that.

This is exactly how for example the Rust or Python open source projects work. And like those projects you can look at the Swift proposals and code to see _numerous_ cases where people did bother to bother the team with change requests or directly contributed to those improvements.

It is all open source. Check it out.