I'm confused by this comment and the accompanying link. This is a wiki page that was created in 2013 and hasn't been touched since. It contains no recommendations, just some random thoughts that look like they were written spur of the moment and then forgotten about.

Oh, and it starts with a giant disclaimer that says "This Wiki page is edited by participants of the RDWG. It does not necessarily represent consensus and it may have incorrect information or information that is not supported by other Working Group participants, WAI, or W3C. It may also have some very useful information."

Do you have anything else to point to to suggest that the W3C is "pushing us all since 2013" towards 3 cloud providers?