I guess they thought I produced the bluffing player's card to prevent the other player from folding. But you're right that a dealer who was trying to do that could've done so in any number of subtle ways. I couldn't really figure out why they were accusing me at the time, or what I would've gained from it, but it all happened very fast.
There are dealers who are true shuffle mechanics and either know for sure or have a very good idea of who has what. I'm not that skilled.
I re-watched the movie "Casino" recently, and there's a scene where the Joe Pesci character cans a floor man for not stopping a slot machine run after the first or second time someone hits a jackpot in a night. Paraphrasing the movie: "Either he was in on or he's a fucking moron, either way we can't have him here". To bring it back to the original topic, I think in the gambling world, the default assumption is that there's a scam and the employee is guilty until proven innocent. I wonder why that wouldn't apply to a shady firm like Alameda, too, unless management was "in on it". Come to think of it, I guess that's the point of my story, which I didn't realize when I wrote it.