Vidqun,
I'm not convinced by the flowery language of the scientific literature. It seems pretentious, and only superficially gives the impression that the author knows what they're talking about. In reality the building blocks of life at that high level are purposefully complex and perhaps impossible to comprehend by design.
Consider the sheere complexity of biological chemistry. Proteins have atomic weights in the thousands. It is impossible to understand these things properly, and you and I would be kidding ourselves to pretend we have a meaningful understanding of it.
Sorry, I don't believe they have cracked the code of genetics. If they had, they would be able to coherently design and produce a new living creature by scratch, and that kind of thing is meant to be well outside the realm of our control.
Anyway, the more important question would be wether or not it is possible to reverse the affects of the vaccine (if need be!). At it happens, there appears to be a number of plants and herbs that exhibit a natural ability to affect the DNA, and it may be possible to undo whatever damage has been done naturally with the tools that are meant for it.
I would expect that most Jehovas Witnesses were wise enough to not get the vaccine. However I'd imagine some (like me) did without knowing the full implications, others were forced to in order to keep their job, etc.