Honestly, the zapping shit was always oversold in my eyes. And by that I mean the stuff that "changes" based on your actions. Back when, it really didn't surprise or amaze me much in 98. It was neat? I guess? I don't know, I think I just wanted the fucking submachine gun in both A/B.
However, at first, I thought the whole idea of Clare/Leon B was the zapping system. I thought the slightly changed scenario, overlapping with the A scenario was super fucking cool. How they connected with each other. Seeing different environments, characters, etc. Encountering Mr. X. That was the shit that made the zapping system cool to me? It wasn't until I was older that I discovered that the real selling point of the zapping system were those 9 actions or so that affect the other campaign. "So I can use my fingerprint in one campaign to unlock something else in the other? I gotta replay everything to do that. That's a lot of time. Damnit."
Long way of saying I'm happy they took the part of the zapping system that I thought mattered and left the less interesting aspect of it in the original.