Yes, it's definitely a flipper, that is one of the only things that I don't like about the knife. It's difficult to open the knife with only the thumbstud, as the stud is also the blade stop in both the open and closed positions. As such, the stud rests on the handle when the knife is closed and is about as long as the handle is thick so it is not possible to get a thumb under it. The best you can do is to push against the top of the stud and push the blade out, but that will only work if the pivot is on the loose side.
As for the extra clip, I didn't like that either, so I had this made:
It works well, and is a nice addition to my Gen I Alpha (S/N 0021) which is in my EDC rotation.