How would recreating it make a duplicate Tuvix? The reason he came to be was one of the plant samples they had brought with them made the trsnsporter unable to seperate Tuvok, Neelix, and the plant from a single stream of data to deliver Tuvix aboard the ship. It's not, like, that time Riker got cloned.
I'd have thrown Tom out the window, too, for that suggestion.
