The only problem is that we are talking exactly about a file synchronization tool. Thus the exercise isn't as valuable as it may appear at first.
The stand-alone OneDrive for Business (formerly SkyDrive Pro) sync client lets users of Microsoft SharePoint 2013 and Microsoft SharePoint Online in Office 365 sync their personal OneDrive for Business (formerly SkyDrive Pro) document library or any SharePoint 2013 or Office 365 team site library to their local computer. This sync relationship provides access to important content both online and offline. The OneDrive for Business (formerly SkyDrive Pro) client can be installed side-by-side with previous versions of Office (such as Microsoft Office 2010 and Microsoft 2007 Office).
I tried the installer. The installation process is branded all over as being a feature of Office.
Is there something other than the substring 'Drive' that gives the expectation of a fully generic file synchronization tool?
I don't think anyone is expecting OneDrive to be "fully generic" (I believe that 'emeraldd was referring to the "tries to do intelligent things" portion of the sentence he quoted).
It just seems that people are unaware of the fact that putting certain kinds of documents into "document libraries" or "team site libraries" involves automatically adding metadata to those documents (from the OP's example, html comments and "xmlns:..." attributes were added to html files).