the article does say things about SATA, but you misinterpreted it.
It is recommending to you that if you have an IDE hard disk, you most likely need an IDE DVD drive, because your computer probably doesn't have SATA support.
Conversely, if your system has SATA hard disks, you may want to get a SATA DVD drive, because you know it supports SATA, and some computers that have SATA ports don't necessarily have IDE ports. (SATA is faster anyway, so if you have it, why not?)
It's just a recommendation to new people on what kind they should get, so they don't have to do a bunch of figuring.