YouTube issues me a "non-takedown" notice for violating copyright for machinima video?

I just got a notice of violation of copyright from YouTube for one of my machinima videos, which you can see above.  Instead of the usual takedown notice though, here's what they sent me:

UMG has claimed some or all audio content in your video Elfay Pinkdot's Jazz Party in Second Life. This claim was made as part of the YouTube Content Identification program. Your video is still live because UMG has authorized the use of this content on YouTube. As long as UMG has a claim on your video, they will receive public statistics about your video, such as number of views. Viewers may also see advertising on your video's page.

The copyright holder, Universal Music Group , is asserting ownership of the audio track that I use on the machinima video noted above.  I'm clearly in the wrong, since I don't own the rights to use this song in my video.  But instead of yanking the video, UMG is allowing me to continue to use the track, as long as they can put advertising alongside it on YouTube. 

I guess this represents a positive step forward?

The full notice from YouTube follows.  (Yes, I know I should have turned off the UI before shooting the video.  It was one of my first machinima!)

The full notice from YouTube:

Dear YouTube Member:

UMG has claimed some or all audio content in your video Elfay Pinkdot's Jazz Party in Second Life. This claim was made as part of the YouTube Content Identification program.

Your video is still live because UMG has authorized the use of this content on YouTube. As long as UMG has a claim on your video, they will receive public statistics about your video, such as number of views. Viewers may also see advertising on your video's page.

Claim Details:

                                        
                                        
                                        

Copyright owner:	UMG
Content claimed:	Some or all of the audio content
Policy:	Allow this content to remain on YouTube.                 Place advertisements on this video's watch page. Applies to these locations: Everywhere

UMG claimed this content as a part of the YouTube Content Identification program. YouTube allows partners to review YouTube videos for content to which they own the rights. Partners may use our automated video / audio matching system to identify their content, or they may manually review videos.

Sincerely,
The YouTube Content Identification Team