This may be true, but still I've encountered very few problems installing, updating and removing software on my Mac despite this compared to other platforms I'v

This may be true, but still I've encountered very few problems installing, updating and removing software on my Mac despite this compared to other platforms I've used. Why would having separate package managers coexist be a bad thing if they can be complementary? (e.g. Homebrew installs different kinds of things than the drag-to-Applications-folder mechanism).