I wouldn't sign off on this personally. It makes auditing harder. You see `cargo install rg` somewhere, but you also see that `cargo install ripgrep` is what's listed in ripgrep's README. So now you wonder, is `cargo install rg` correct? Then maybe ripgrep has to add a note about this to the README, and maybe you see it, maybe you don't.
Better to just make `cargo install rg` fail so that it never worked in the first place. `cargo install ripgrep` is also more self-describing and gives you a better search engine query.