I believe you meant to say ascorbic acid (Vitamin C), not citric acid.
I did a quick check at the SAF website, at http://www.safyeast.com/catalog2.html
, and the Gourmet Perfect Rise yeast is still shown there, so it may still be a product they carry. If so, it may be their retail level IDY intended to be marketed to home bakers. The SAF Red may be their IDY targeted to professionals. Both the Gourmet Perfect Rise and SAF Red yeasts contain the same ingredients, including ascorbic acid. The Rapid-Rise yeast which Alton Brown disdains is really an IDY yeast, although it is not so identified as such in supermarkets. As best I have been able to learn, the Rapid-Rise yeast, which is a Fleischmann's product, is a somewhat different strain of yeast than is sold to professionals. It is the retail level product intended to be used by home bakers to make yeasted doughs quickly, usually in a matter of hours, not days, although it can be used for that purpose much as we use any IDY. The Red Star counterpart to the Rapid-Rise product is the Quik-Rise yeast. The yeast that is sold in the supermarkets as bread machine yeast is IDY, but not so identified.
So, you make some very valid points. Unless one is educated on the various types of yeast sold in the supermarkets, it will be easy for one to be confused when confronted with all of the possible choices. It's taken me years to get things straight, and I may still not have it exactly right. The customer service people at the yeast producers, and even companies who sell their products, like King Arthur, are usually ill equipped to answer technical questions concerning yeast, and they are not tapped into the technical departments when you call or write with your technical questions. More than once I have found myself myself educating them about their own products.
Like Bryan, I have never seen the SAF Red IDY sold in any regular markets, although eiither the SAF Red or the Fleischmann's IDY for professionals can be found at the big box stores like Wal-Mart and Costco's, usually in one- or two-pound bags. I believe the large bags of ADY, which I think is a perfectly good form of yeast, is also sold at the big box stores. The ADY forms of yeast are just about the only ones identified as such in the supermarkets.