Sure, because the repo contains a ton of tools. Yet another advantage of the monorepo: if everything is in one repo nobody will notice that you haven't touched

Sure, because the repo contains a ton of tools. Yet another advantage of the monorepo: if everything is in one repo nobody will notice that you haven't touched that one part of the code since you wrote it. Or let's phrase it differently: there will always be a part of the code that you do not have to touch for decades if all goes well. And if that part sits in a seperate repo, is it abandoned or just finished?