Not a big deal
Who is this going to affect in the near term? Most home users I know are happy running an older version of Office. Microsoft talks about the "pace of change accelerating", but the features most home users care about are fairly static. I know more than a few people who still run Office 2003.
Business users might care more for the new collaboration tools in recent versions of Office, and therefore a greater need to be current, but they tend to be on a different lifecycle model than your typical home user. When my Thinkpad gets replaced every few years, I get a new version of Windows and Office.