[durumu]

Sure, that would fix the bug immediately in front of you, but what if the same bug exists in several of the other copies of the dependency? Are you going to be able to track all of the occurrences down? I think that's the big tradeoff.

[Spivak]

I'll take that every time, to zeroth order if the bug occurs other places it's free to err other places and I'll deal with it. But if it doesn't then does it matter? If we're experiencing a bug in a specific code-path is the right move to make a change that fixes it in one codepath but potentially changes the currently working n other codepaths that depend on it? If it weren't DRY'd would you bother changing the others? Probably not.

To first order :vimgrep is totally mechanical and brain-off repeat fix is super easy.