Why is this not a part of Chrome? This is starting to resemble the Norton Way(tm). For a number of years Norton have been distributing special tools to help clean up and remove their own products, making them a 100% un-user-friendly.
I might be wrong, will try to dig deeper, but to me it seems like this is for removing third party crapware that might affect your Chrome experience (toolbars, ad-injectors etc), not for removing Google's own stuff. So kind of makes sense to be an optional standalone tool.