A bit of confusion around Google Bookmarks?

Let’s start with two quick facts:

1. Google recently refurbished Google Bookmarks (after neglecting them for a couple of years), giving them more importance in search and allowing us to share them with friends more easily.
2. Meanwhile, a different team (I guess), implemented Bookmark Sync from Chrome, a new features that synchronizes bookmarks with a Google account (quite handy when you routinely use Chrome on many computers). Those bookmarks end up in a read-only directory in your Google Docs space. I’m now wondering: why do we have two different sets of entities, called bookmarks, that share some similarities, are stored in different places, serve (slightly) different purposes, have the same name.

Isn’t that confusing?