You trust your distro to make choices that align with your preferences. Personally I've always preferred distros that change upstream as little as possible, but other distros make other choices on this, which is also entirely reasonable.

Assuming this proposal is implemented as stated – which I don't expect it will – then I'd expect some distros to disable it by default. Go already provided the tools to set these kind of things globally in a recent release (1.20 or 1.19 IIRC) with a global go.env file.

Yeah true, I hate it when Alec Warner breaks into my house and forces me to recompile my user-space at gunpoint.