Maybe I misread the OP, but I didn't get the impression it was a sliding treble, but that the treble and the dropshot weight were basically fixed together on the line, almost like a jig but not actually molded to the hook shank. I'm not sure if that changes your opinion any or not, nor does it matter to me if it does. You certainly are entitled to you opinion, and if you don't like the rig then don't fish it. I just don't see how it could be considered snagging, at least by the letter of the law here in NY, if the fish picks it up in its mouth. As far as asking an ECO about the rig, I have never run into one while fishing, so I wouldn't hold your breath waiting for a response to that, lol. I will say that even though I disagree with you in that I don't think there's anything wrong with the rig when fished the way the OP described, I do think that it would be enough to make an ECO suspicious, and probably wouldn't fish it myself for that reason.