Yes, that was it. Thanks for showing the link.
The older knives could be opened and closed with one's thumb on one side of the knife. Now it takes moving the lock on both sides to close it, as you note. I can't imagine why Cold Steel would continue with this as the Recon 1 could be one of their best selling knives.
BTW, how do you like the tanto blade? It's not a very attractive blade shape, but it does stay rather thick right up to the point. In contrast, I've noticed my CRKT M16-14s narrow significantly coming to the point. I would think that would be defeating the whole purpose of a tanto configuration in the first place.