Microsoft Picks the Perfect Pitchman in Seinfeld

Microsoft releases its new Seinfeld commercial:

1) WTF was that about?

2) Could Microsoft have picked a more apt pitchman than Seinfeld? I mean is there anyone better than Seinfeld at epitomizing being world dominant in the 90s and now just phoning it in? If you wanted to say "hey our best days were in in the past and now we are just a shell of our former selves", who better than Seinfeld?