I understand that, and I trust Julia’s developers. The reason for my comment is my concern for openness: this is something that shouldn’t be done without telling users about it, on principle.
I just found https://github.com/JuliaLang/Pkg.jl/pull/1544#issuecomment-565160856, where Stefan says this is going to be documented. It’s not there yet, but I trust it will be before 1.5.0 is released.