This doesn't mean players cant still wear Riddell helmets, right?
Correct, Players can still wear Riddell as well as Schutt, Xenith, etc. The main take away from the article that I gained was the NFL is trying to distance itself from having a "sponsored brand" of helmet. The way it is now players can wear whatever helmet they choose as long as the name is not present due to their exclusive deal with Riddell. I believe that since the deal is ending the names of the other helmet manufacturers will be present on the helmets.