Suspension Noise problems of the 2005 Hyundai Sonata

I notice that there is a recall on Hyundai Sonata's from 2006 -2010 in regards to rust concerns with rear suspension. This was just detected by my mechanic that the attaching point for the control arm has rusted and became separated from the crossmember. The result and my immediate concern was the sudden change in vehicle handling, a loud noise coming from the rear tire when I hit a small bump. I was wondering why the 2005 Sonata isn't covered in this recall?.